yes... and craving carbs and sugar. Since I'm also dealing with the small bowel obstruction, most of the food I eat has to be clear liquids or of baby food consistency. The carbs are supposed to help you come off the drugs. If it's not one thing, it's another.

My stomach is so queasy I don't know if I need to eat or vomit.

I been eating!! I find ice cream been helping me with the stomach issues!!

In my research, one person going off Effexor said, "When I am nauseous, I hate to drink water, but I find that ice water actually helps my nausea as do hard boiled eggs."--https://forums.webmd.com/3/anxiety-and-panic-disorders-exchange/tip/92

When I went through chemo, I often would experience dizziness in the days following a treatment. I had been given medication for nausea, but since I didn't feel nauseated, I didn't take it. When I talked with my oncologist about the dizziness, he explained that the nausea medication worked on the brain and that I should take the medication because if I was having dizziness, I was having problems with my brain. Perhaps your problem is the reverse of mine then. You might not have ondansetron, or prochlorperazine handy, but you could try Dram*mine.