after 5 days i started to have tightness in my chest and other classic heart attack symtoms. I went to the hospital had an ekg and other tests and all turned out ok. The Dr. told me to take a low dose aspirin. The tightness in my chest kept coming back many times a day until i decided to use a little meth. Now I am fine and i think after using meth for so long i need to slowly taper my usage.