i know how he feels, i still get them and ive been smoking for over a year now. got it really bad the other night. its not jus your heart rate, its the feeling you get like your trapped and so many fucked up thoughts run through your mind. its hard to explain. its not cool. but yea it wears off. remember no1 has died from pot in over 10,000 years so u he got nothing to worry about!