but the protein powder did funky stuff with my stomach
Yep - I tried these many years ago, and the same issue. I think it is because of the various blends - it isn't just protein. I find for instance, that eating carbs and protein together isn't ideal for me.
I think the less processed food is, the better.
I plan on getting back up and doing it again tomorrow though.
I want to get back. Weekend maybe looks okay.
I thought about switching to something like oatmeal in the mornings, but I am not sure if I can do the texture. I just know that cereal probably isn't doing me any favors each morning.