I don't know what to do anymore. She got her first dose of 2 cups of c…

I don't know what to do anymore. She got her first dose of 2 cups of cereal for the first time, buckwheat porridge. I fed her a vegetable squash as a supplement. I introduced double dose on day one (I gradually increased it from one cup per day). Then there was a sudden temperature spike, we switched back to one cup again, and we were hospitalized with COVID-19. In the hospital, we drank Bifidumbacterin for 5 days, the doctor said another 5 days at home and after a week we could start feeding her double dose. Now I have a strong fear that my stomach will hurt again or get sick. The doctor said this happened to coincide