slightly elevated thyroid levels and pcos

So went today for my blood results and ultrasound reviews and my ob has confirmed I have pcos and put me on birth control pills to regulate my period whitch I'm starting on the first of next month, and he also prescribed metformin 500mg 2× a Day To help with the pcos I'm guessing???? And then on my way out he tells me my blood work showed a slight elevation on my thyroids so he gave me Levothyroxine 0.05mg 1x day to help with that ...... Anyone have any experience with any of this? Any advise would be greatly appreciated ♥️