Have you tried oatmeal? You can add lots of things to it (suggestions on internet) from maple syrup to vanilla or peanut butter. Sweet or savory. Your diet would have me so constipated I’d be miserable.

My suggestion is this is not an easy answer since nutrition is key. Some people are very constipated, some are not. Eating beef is a no no. Make sure you are nourished!
I am not and feel very weak...

That's fine but at least 1 hour before and after meds