I have threw up after pills. At first it felt really intense when I first stood up from the toilet, so much I had to go sit down. I drank some water, not feeling great, I made myself go out to do something, at some chicken (my cousin said its the best thing to eat when that happens). After that I was feeling really good, I didnt feel sick, but my body is comfortable, so much that I felt like I could do anything because I wouldnt feel the pain.
So if it happens again try some water and chicken, then go out and keep yourself busy, enjoy the buzz. Also you could try less hydro, or like your said the CWE.