Whilst I have not experienced the exact sequence of events that you have, I feel there are enough similarities to re-assure you that you are not alone in these matters. Certainly, one of the first signs of me becoming depressed is obsessive and anxiety states.
I am Bi-Polar type II, and whilst I too had problems at school with anxiety, depressive and obsessive states - it took a further 32 years for the 'true' diagnosis to become evident.
The diagnosis over 3 decades went something like :
Anxiety states ( 1975)
Anxiety with depression and obsessive disorders ( 1983 )
Bi-polar II (2004 ).
Points of (hopeful ) re-assurances are:
* Neurologists tell us that the human brain is still 'developing' during and sometime after our teen years, therefore:
* our true and treatable illness often needs time to properly manifest.
* When the Psychiatrists are more certain, they can proceed with treatment.
* Rushing a diagnosis and therefore giving the wrong treatment can be very counter productive.
* Your obsessive behaviour with relation to other people is another symptom of the underlying illness, not an indicator that you are yourself 'strange'. .
* It will be easier for you to take more control over your life/problems/illness as you grow older.
* Better things are therefore ahead.
* You are certainly not alone in having these types of feelings and symptoms.
Keep looking forward whenever possible and let us know how you are getting along.