Talk to your doctor to prescribe better pre-meds. Nausea can be addressed with the pre-meds and also a prescriptive drug.

I’m just the opposite. I look at food and don’t want it. But if I force myself to eat it’s good. I lean towards things with “bright taste” like sipping on cold orange juice, yogurt, etc. I also work hard on protein even resorting to protein waffles and pancakes on those days where I need the “BRAT” diet.