21 M- sounds like I have the same problem. It began about 3-4 years ago where I could be in the middle of work or deep sleep and I will feel these huge waves of nausea. Had all the same tests and scopes and nothing as helped. Like you I have been prescribed with anti-migraine medicine, but does nothing. For me the best way to get rid of the nausea is to sleep a good day or night, but its a little hard to sleep when you have to puke every 20 min. Water, Gatorade and simple crackers cant stay down when I'm in the middle of my episodes and it feels like I get super dehydrated and need to chug water just to feel a second of relief and to help with the stomach acid. Good luck and if you find anything that works, please post back. Like you I don't want to be sick anymore and its not only physically painful, but mental frustration too. If you can you might want to try some marijuana, The only thing you can do is treat the symptoms at this point and it seems to help with the physical pain and gets me to sip water without puking. Doctors don't know what to tell me, so i'm asking everyone.