Once while travelling in metro in April, I fainted after seeing a lady faint. After that there was a feeling of light headedness in head back side and whenever I heard ambulance siren I felt as if I would faint. I visited a psychologist and he prescribed clonotril, Toficalm, indranil. I took the medicines for 20 days but felt doctor is extending treatment for money. I slowly discontinued the medicines. Only when I felt uncomfortable I took clonotril 0.5 mg (that cures the uneasiness in 15 minutes, very effective). Now it has been over a month, the fear has left but sometimes I feel I would faint There is uneasiness in the back side of head. Sleeping is fine, diet is fine and joined a new job with increased salary. So I do not think this is depression. Please help.