Dear Welcome to HCM We understand your concerns I went through your details. Normally depression alone cannot cause unconsciousness. But Stress and feeling of insecitu together with outrage can trigger unconsciousness. Because you get agitated too much, body is unable to manage the agitation and it finds it easy to make you unconscious. Means it is body s defence mechanism to cop with the threat. You need to learn a lot about stress and other aspects. You need counseling and please meet a psychologist soon. If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail. Hope this answers your query. Available for further clarifications. Good luck.