Hi there and thanks so much for posting this question Sorry to hear about this incredible ordeal and you learn to NEVER take ecstasy pills again. You can post this question in the neurology forum or similar. I will give you my opinion though. My opinion is that you should go to the doctor and check that everything is fine, in any case I will give you some interesting information and links
Ecstasy can make users:
Vomiting- Feel nauseated, perhaps even making them throw up (how's that for making a great impression at a party?).
Panic, over stimulated and high anxiety
Hot sometimes fever is associated
De-hydratation, which can lead to heatstroke.
The DEA reports that recent Ecstasy-related deaths were associated with core body temperatures ranging from 107 to 109 degrees Fahrenheit.
Their memory may suddenly go. They become uncoordinated and clumsy.
It sounds like you are going through periods of anxiety and stomach problems. It looks is more quite common than you think. The day after effects (and perhaps also some the nausea) are probably an indication of adulterants (check out this thread for a list of common ones I found this comment in http://www.drugs-forum.com/forum/showthread.php?t=106572
The exact cause is impossible to pinpoint, it could have been any number of things in addition to the MDMA/adulterants, ie what SWIY ate/didn't eat beforehand, whether he stayed hydrated, a result of the descent back to baseline, etc etc. Everyone's body responds differently to different chemicals/situations
http://www.drugs-forum.com/forum/sho...ht=nausea+mdma, any of those could have resulted in the nausea, dizzyness, ****** feeling day after, etc.) in SWIY's pills.
Read more: http://www.drugs-forum.com/forum/showthread.php?t=106572#ixzz1x9HstRpp