I have used DXM about 8 times now. My last experience was not so good. I was nauseous the whole time to the point where i could not enjoy it. this has never happened before, it usually goes away in an hour at most. Now, for the past week or so since then, i have felt nauseous each night/morning. Could it be related? it only started after my last trip. Has anything similar happened to anyone else? AAAA!8(8?