Not that I am aware of had a guy blowing cigar smoke all over me today whilst playing golf made me cough a few times then tried to be on the right side of the wind.

how about legs... my legs hurt so bad and get extremely tired

No never in fact I quite enjoy the smell - no cigarette now for 7 years being a 50 a day man for some 50 years

Oh my gosh yes! If I even get a hint of someones smoke, I start to feel like I will suffocate! My throat closes up and I have a terrible time inhaling. I get short of breath and more than a little shaky. I have yo get as far away a possible as soon as possible and get clean air or I'll get very sick.

I dont experience that cause I smoke. But its ok. I can't quit. I've tried it for two days and During the two days I wanted a cigarette.