Newly potty trained diarrhea

So my daughter (3 in April) just potty trained 3 weeks ago. The last week she was constipated and then over the weekend she had a few bouts of diarrhea w/ mucus. Monday she had a solid poop and then diarrhea the rest of the day (3-4 times) it was all lighter than her solid BM and had mucus. It’s Wednesday and she’s still having diarrhea. No visible mucus today but had gone either a lot or just a little (like quarter size) at once. The last 1.5 week or two weeks, she’s been constantly grabbing her bottom and vagina. I chucked it up to having better access to it / it’s new to wear undies or go naked so she’s just exploring but then she started saying her vagina hurt when we wiped and would refuse to wipe. Took her to the doc Monday and no UTI but her vulva is extremely irritated and they prescribed nysatin cream to help and no bubble baths. I mentioned the diarrhea and her doc, who we really do love, said at this age it’s usually entirely dietary and get her some fiber and a probiotic which she’s been on for over a year. I replied there has been no diet changes, her appetite has been normal, hasn’t had any new meds or food so when would it be cause for concern? And she didn’t reply today. Just wondering if anyone has dealt with this. I’m a hypochondriac and have anxiety and I’m working on not projecting that onto my daughters health (it’s so hard!!!) so I really struggle and wrestle with what’s “listening to to my mom gut” and what is just fear. especially since 9/10 things are fine and normal. Ugh. Help! via /r/Parenting https://ift.tt/3op66Jx