I am glad you're at least eating something. That is really good, it is.
You would not be selfish for continuing to see the T you've seen for a while. Did THEY say that you had to stop therapy with them? If they haven't, sometimes Ts are allowed to keep some of their clients longer-term if they work well with them.
I'm sorry the hospital was such a bust. I don't like the ensure/boost/meal replacement drinks because they taste weird to me and yeah are kinda rich!! Can you get a referral to see a dietician maybe? Nutritionist?