Hello, my boyfriend experiences reoccurring nose bleeds, intense chest pains, black out migraines, and even had instanances where he threw up blood. He s 16 and told me that none of this happened until he did meth, though he only did it a couple times. Growing up from about 11 he was a hard core stoner, and has experimented with drugs like LSD, Roxies, Cocaine, and etc. He says he s just fucked up for good... but could you tell me what s causing it and possibly how to fix it? Doctor examination hasn t been very through and he rarely agrees to go.