Friend was at 4 day festival and rolled heavy everyday. On the last day he overdosed says he did orally and through the nose and almost didnt make it. Heart was going crazy, body heating up etc. 2 days later friend went to the er cause he still wasnt feeling well. Got blood work etc nothing was wrong. 4 months later. Still feels pretty bad. Chest and back pain. Went to a cardio got a stress test, ekg, ecg everything came back normal. Still have stomach and back pain. Cant swallow spit like he use to etc. Could this be from mdma or just a massive amount of anxiety from what happened. Also parts of body drying out such ass tongue, eyebrows, hands. Was telling him to use 5 htp to bring back sertonin levels. Not sure if im correct though. Advice and opinions welcome. Thanks.