Silver, do you have supplement drinks over there called Ensure? They come in high protien and are packed with vitamins. They come in chocolate, vanilla, strawberry, and mixed berry.
Get some and put a bottle in the freezer just until it becomes slushy. Shake the bottle hard to mix it up and drink it. Try for at least two a day, but if you're not eating, three would be better.
Please let me know how you're doing.
Hugs,
Jan