Fear of death. To perform. please help?

I generally fear to go to places where there is no medical facility. I feel that I might have some health issue at night and that gives me sleepless night if I go to such places. I was a heavy smoker and drinker but I left these habits for the last 18 months. Initially I had panic attacks but now I am a bit stable but I feel excessive fear sometimes for issues which are not important or for some things which might happen in future. Moreover I stay in constant fear that my health will deteriorate slowly and I might not live. The fear of death is not letting me to live life. I had a health check last year and everything was normal. The high BP was diagnosed as hereditary. I avoid meat and walk for 30 mins daily. In a way I am leading a healthy life now but the fear of death is killing me. So please help me to lead a carefree life as I had before I had high BP. Any medication or yoga which I am ready to perform. Please help