I am 35 year male and take heavy alcohol and tobacco on daily basis. Now since last 2 month I am feeling anxiety problem. Sudden I start feeling that heart rate are increasing and could be heart attack and situation some time got worsen. It happen only in morning around 9-11 Am and evening arnd 4-7 PM. Some one suggest me to take melzap md 0.5 tablet but now I feer that taking table without consulting a doctor could be more dangerous. Please advise me what should I do and how I could live my life like living earlier. Now I am very much tense and can not focus on any thing. I always keep thinking that some thing worse going to happen with me like heart attack. Please advice some medicine which I can take and can rid off from this problem.