<s>[INST] for the last two days i have used methanphetamine intravenously and now my legs and ankels feel numb and appear to be slightly swollen and my stomach feels swollen too. I use drugs intravenously about 3-4 times per year and i have never seen this happen to me before. [/INST] One of the concerns with IV drug use is the possibility of infection, and if you are continuing to have swelling -- I would get further testing with your doctor to rule out infection. </s>