Reoccurring UTIs, abnormal bleeding, hair loss, weight gain...

I've been in and out of doctor appointments with planned parenthood. I had excessive brown blood around three months ago. I went to the doctor and had a full vaginal ultrasound which came back normal. My periods have been irregular for the last couple of months and I have had reoccurring UTIs. Constantly.

Yesterday my sister pointed out that I had a huge bald spot on the back of my head, when I was wearing a ponytail. It's a HUGE bald spot. I have thick hair and never had any issues like this and while I've noticed some hair loss I didn't anticipate a huge bald spot.

Could this all be connected? I asked my doctor if it could be my hormones and she didn't feel like it was worth getting checked but she did have my thyroid get checked which came back normal.

I don't know what to do or what's going on with my body. I'm not under a lot of stress or anything so it shouldn't be that.

Anyone have any ideas what this could be? Could it be a hormonal unbalance? Something else? I plan on going to a different doctor when I get the funds but since I've already built up some bills due to the previous visits I have to wait.

Thoughts?