Have you tried breaking meals into smaller, more frequent bites instead of full sittings? On the days food feels impossible I lean on something like a protein pudding, roughly 200 calories for 200 grams and 20 grams of protein, or a fiber and protein bar around 130 calories with 8 grams of fiber. If even that's too much I just go slow, a bite here and there whenever I can manage. A protein drink or one of those clear protein mixes around 100 calories with over 20 grams of protein works too on the roughest days. The further along I got, the more I noticed I could handle eating again. Just takes practice, and don't expect every single day to go perfectly. You'll get through it.