(This isn't medical advice. You should see a doctor before attempting any diagnosis or treatment. Don't sue me. etc.)
"I think that you need to see a professional if you want to be 100% sure"
It's important to note that you can't be 100% sure even if you're diagnosed by a professional. Misdiagnoses are very common when it comes to mental health. This can be especially dangerous when you're given a prescription medicine to treat something that isn't accurate, as it can end up having the opposite effect.
That means you can't be passive about your health even if you have a doc. I think you should research any diagnosis you get on your own, long before you accept medication, to see if it's really relevant to you.
Likewise, you should do some research about your health to get an idea of what you expect to be diagnosed with before you even go to a therapist/etc. because it will allow you to seek out a specialist on that topic. Some therapists will not take you seriously if they specialize in something contradictory to what you're showing symptoms of. Not all doctors believe in all illnesses, unfortunately.
"What are your thoughts on self-diagnosis?"
Imo: Doctors are just people. So long as you've taught yourself well and are being responsible about it, self-diagnosis isn't a serious problem. But you need to be careful in case the underlying cause of your depression is another disorder or forgotten trauma, as aggressive self-treatment can be triggering.
PSA "researching depression, comparing yourself to a list of symptoms, maybe taking a test online" Is not the responsible way to do it. Like, for the start, "depression" is not a diagnosis on its own, though there are many types of depressive disorders one may have.
Read through the DSM-V on depressive disorders (page 155 and on in the book,
here) and see if you fit the criteria of anything shown. Don't decide that right away, either -- close out of it, write down your daily life and feelings for a couple weeks, then come back to it & compare.
For example, these are the diagnostic criteria for a major depressive episode:
Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning: at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure.
Note: Do not include symptoms that are clearly attributable to another medical condition.
- 1. Depressed mood most of the day, nearly every day, as indicated by either subjective report (e.g., feels sad, empty, hopeless) or observation made by others (e.g., appears tearful). (Note: In children and adolescents, can be irritable mood.)
- 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated by either subjective account or observation).
- 3. Significant weight loss when not dieting or weight gain (e.g., a change of more than 5% of body weight in a month), or decrease or increase in appetite nearly every day. (Note: In children, consider failure to make expected weight gain.)
- 4. Insomnia or hypersomnia nearly every day.
- 5. Psychomotor agitation or retardation nearly every day (observable by others, not merely subjective feelings of restlessness or being slowed down).
- 6. Fatigue or loss of energy nearly every day.
- 7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delusional) nearly every day (not merely self-reproach or guilt about being sick).
- 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (either by subjective account or as observed by others).
- 9. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide.
B. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.
C. The episode is not attributable to the physiological effects of a substance or to another medical condition.
D. The occurrence of the major depressive episode is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or other specified and unspecified schizophrenia spectrum and other psychotic disorders.
E. There has never been a manic episode or a hypomanie episode. Note: This exclusion does not apply if all of the manic-like or hypomanic-like episodes are substance-induced or are attributable to the physiological effects of another medical condition.
There's a lot of other good information in the manual which goes into depth about how depressive episodes look, what disorders are commonly co-morbid with it, and the many variations of it (varying severity and frequencies).
As far as how people have self-treated this, it depends on what the cause of the depression is:
If it's due to a chemical imbalance, you're not going to fix it without medication or dietary intervention. You really need a doctor for this.
If it's due to a specific event, you may want to research grief counseling techniques or ways that trauma is treated, depending on the type of event it was. Trauma will eventually need a therapist.
If it's caused by other disorders, you probably won't know until nothing helps and you're forced to see a professional. You'll need to treat the underlying cause at that point.
If it's more of a self-inflicted "echo chamber of lies" type issue, you may want to practice mindfulness and stop looking at yourself with judgement. A therapist who specializes in self-esteem and life-organizing may help with this more.
To just stay out of bed and take care of yourself: Try observing what you do daily from the perspective of a kind outsider who sees nothing wrong in anything you do. What can you change in your behavior to not influence them negatively? Don't think about the overarching "well I need to reach x and y goals", think about the "right this second, I'm sitting up straight" and the "right this second, I'm brushing my teeth". Not "I'm going to" but "I am", as you do (likewise, it's not "then you'll do this" but "as you do this").
Generally thinking positive about yourself will help a lot, too. Even if it's secretly a "lie", even if you "know" you "don't mean it", just having a positive environment in your own head will go a long way.
--
Anyway, depression sucks & it's hard to get through on your own. You may eventually need to get professional help. When you do, remember that committing to treatment doesn't mean committing to that particular therapist; if thing's aren't working out, don't be afraid to ask them to refer you to somebody else or to just find another on your own terms.
Good luck & feel better soon :c
(This still isn't medical advice. You should see a doctor before attempting any diagnosis or treatment. Don't sue me. etc.)