Earlier I was a regular smoker but now not a regular smoker but smokes 4-5 cigarette  in a month? But nowadays even I take a puff of cigarettes my blood pressure suddenly increases to (180/140) and I feel like some current sort of thing running all over my body chest and heart, and it freaks me out, this also happen if I drink even a half beer can, I had my ecg echo done and it's normal, don't know why it is happening.