Respected sir, I am 27 years old and regular addict of marijuana and cigarette from past 10 years, I have quit consuming these substance past 1months because I started feeling that the moment I use these substance I began to feel uneasiness and heartbeat increases constantly and I feel like I couldn't survive through this state and suffer an heart attack or cardiac arrest, even after giving up smoking these substance like weed and cigarette I constantly feel uneasiness and increase of heartbeat