I'm baaack with a question

I had my surgery on the 17th. I am now on full liguids. I can get in the liquids but do not seem to be able to keep up with the protein. I can taste the powder. Plus I think I have dumped twice on skim milk. Once I had 8oz milk and some sugar free pudding, yesterday I tried to do much of my protein with milk... I could barly stand up and was so nauseous and hot both times. Is that possible? blesings, Pam