When my tummy/gut is having problems , I do well with poached eggs and toast.
Then add in the BRAT diet foods.. Bananas, apples/sauce, rice, toast.. and see if those help or not..
Eggs are well rounded nutrition wise..
The sodas & hot chocolate may be part of the high blood sugar readings..low nutrition value.. but if that's all that works for you right now, do what works and try to add in more nutritious foods as you are able to.

I hope you get some relief & answers soon..