Yeah I agree with madskills and f1n1shed. I am a beginner myself but am slightly educated on the effects of IV Meth. A very bad habit but that's not what your here for. IV Crystal is different than smoking or ingesting, it starts out super euphoric and then once you come down from initial high you start to feel the negative effects which include but are not limited too: high heart rate, depression, body aches, headaches, and the obvious ones like no hunger, thirst ect. Crystal is very hard on the body and depletes the body's nutrients and about now you should bring peing dark yellow and maybe a stomach ache along with high heart rate. Doing more can up your serotonin and might cover up the negative effects temporarily but you will not peak again and eventually you'll just be wasting dope because your coming down and your body is exhausted and can't feel it anymore. I would recommend to quit using about now and stick through the comedown process because you will come down eventually and the less you do and prolong it, it will be a lot easier. Obviously you should drink water get some food, maybe take multi vitamin after you eat, take a shower and your body should feel a lot better believe it or not. A lot of people don't believe how important it is to keep up on water and nutrients it helps with the high and comedown a lot, and of course keeps your body healthy. Crystal is very hard on body so this is important. As far as your symptoms go these are pretty normal and you shouldn't worry, it's always good to be safe. I would wait to do more until after you finally sleep so you can actually feel the euphoria again. If you as I said above and still feel uncomfortable then I would try one of the following: if you can obtain any benzos or opiates that might help bring you down and relax you. Maybe melatonin or Seroquel or any antipsychotic or certain sleeping pills, refrain from the ones that cause loss of reality and make you trip if you don't sleep like ambien, becaus if you don't get sleep then you don't want to start trippin. There are a few threads on sleeping on aphetamines that go into what OTC drugs work best maybe check that out if all else fails. If you must keep using you probably won't reach initial peak but using larger doses will help but might just speed u out. Try doing something easy and productive if you can't sleep to pass time. Once you use there is no way to take it back so sit it out and enjoy the dope! A lot of it can be overcome mentally. I hope I helped let me know if you have any questions I'll be up tonight in same boat. Best regards