I had a similar experience from an antibiotic I took, that I turned out to be deathly allergic to. It was my whole system, toxic. If she is taking any post-surgical antibiotic that she has never taken before, it could be the culprit. Also, the only position in which I could rest at all was on my right side, trunk and shoulders slightly elevated-- turns the stomach the right way.

Main thing, I think, is see what she thinks she needs-- help her listen to her body. What does she think is wrong, and what would help?

~S~