@baz10 I can imagine how difficult this must be for you, the mother. I know it would be for me. Our sons are certainly old enough to make these decisions though and you have to respect that.

As @hopeful33250 said, maybe a dietician could help with meal suggestions of things that may go down easily. It sounds as if you don’t live far from him. Would he allow you to bring some soft but tempting dinners? I was sick when I was in my 20s and could only hold down soft foods. My mother made chicken in a white chicken gravy on top of mashed potatoes a lot for me, egg custard, and puddings. The chicken was basically poached so fairly soft too.

I hope your son will be feel better soon and that he will be able to eat more regularly. Please let us know how he is doing.
JK