Sir, I am 35 years old male. I am a smoker (6-8 cigarettes /day) and I take alcohol twice or thrice every week. I am also taking Etricoxib 60mg every day (once) for chronic body pain. I am having a problem of 3/4 times motion. Now I am experiencing a little suffocating during the first one Km of my walking exercise. After 1 Km I feel a bit relaxed. Am I suffering from any heart problem? Please advise.