I am 27 years old male. I am very good academic result. But most difficult problem in my life is if I feel nauseous and finally vomiting. Every time it occurs. I have vomitted so many times that now seeing car and bus I feel sick and nausea. And it is not possible to do any government job without riding car and bus. I have taken avomine and stugeron with consulting doctor. But these medicine make my  problem worse. So, should I leave studying?? I can't take it from my mind. I can't think other profession. I am in very much depression. Every time suicidal thought is coming. Please guide me.