One thing after another...

So after two months of no period I was finally diagnosed with PCOS. I was put on metformin for it. A week later exactly I developed a sinus infection and tonsillitis. I was put on antibiotics for that. A few days after that I developed what I figured was a yeast infection (nothing smelly just itchy) but doctor thinks it may be all the new meds I'm taking and my body has a lot going on at once and it's throwing off everything. She says after I come off antibiotics and it dont subside then to come in. I get that it could all be unfortunately related. Im just wondering if this has happened to anyone else. Or if anyone has any advice. My doctor says that I may craving "sugars and carbs" when I don't need them and it's not doing good for the yeast.

So much going on and I feel like it's been a whirlwind the last 2 weeks.