Hello there. I have a boyfriend who is always smoking weed with tobacco. He can smoke any where from 1 gram to 3 a day. For around 3 years now, he finds himself really sick. Sometimes it's once a month other times it's once every 3. He gets overly weak and can't stop puking almost like a harsh flue. It can last anywhere from a 3 days to 2 weeks. He's been to the hospital time after time after time. He has even traveled with his mother to find answers. No doctors know what is wrong... my boyfriend refuses to believe that dope is the cause of this problem. Do you have any idea. !