Suspected Mold issues causing health issues – need advice

Hi all!

I’m having what I suspect is some black mold issues in my home. It is visibly growing on a surface in the bathroom. For context, I own my home and was living alone till August. In August I had someone move into my spare bedroom and bathroom, and that bathroom is the one that has mold issues. It’s gotten worse since the tenant has been using the bathroom. In September, I started with recurring tonsil issues that haven’t been cleared using antibiotics. I’ve had tons of testing done, seen multiple doctors and there’s really no explanation for my health problems. I’ve never had these issues before.

last week, I was gone about 12 days for the holidays, and therefore went about 3 weeks without any tonsil issues (I finished a round of antibiotics about a week before I left). I came home on Monday, spent 3 nights in the home and now am having the same issues again pretty immediately. I’m intending to spend the next couple of nights at a friends home to see if my symptoms improve.
All of that said, does anyone have experience with mold issues like this? I know mold exists and not all of it is toxic and alarmist, but i have a mold company coming to test tomorrow and wanting to know if anyone has remediated their home and has advice. Any input or recomenndations are appreciated!

Thanks!