A bypass petiont need for post surgery problem

sir, my bypass surgery was performed before 18 months(3 april2007) now i am quite well. but I found some changes in me and I am too worried about it. i fill very nervous many times. i become angry and giving violent response in very little things. there is no simpatance of cardiac problem but bcoz of pain near about scar i fill too uncomforting face some psychological problems and think that i become a patient of psychological doctor .i do not fear about death but filling uncomforting many times. some times thoughts about suicide enter my mind. my family look after me batter and after seeing there sympatric attitude i become too nervous .too become angry and violent is my main problem and also filling of unsecured every time is also my problem. After bypass my sexual desire increased. I am trying to control on me but I think some treatment is necessary for me. I believe on homeopathy but fear that a homeopath can give me solution on my some type of psychological problem? Please guide me properly.(additional information : for propose of sex problem I am starting to consume 20 drops of yohobinum Q and dormiyan Q four times in a week? Whether it is harmful? I have got positive and good result from it)