Nervous About Lab Results After Infection

I get labs tomorrow. I’m nervous just because I was in the hospital in April due to an infection (uti that went to my kidney) and I got pretty sick. I got better but then the antibiotics they gave me definitely ruined my gut. I started to feel better after eating yogurt and all. Then just started feeling crummy today. At all costs I try to avoid the hospital but I feel like my lab tests are not gonna be amazing because something is going on in the inside due to the antibiotics. Any ideas of what it could be? Just stomach pain. I lose weight when I am not trying to. Temp is normal. Have to go to the bathroom after I eat though. It’s annoying.