It may be related to thyroid. When you go in, they'll probably do some blood work. Some medications cause similar symptoms. Not sure if you're on any.
Could also be related to testosterone level, but your doctor will probably do a full hormone panel. I had high free testosterone that appears to have resolved itself over time and it gave me acne, thinning hair, some unwanted, unusual hair and a deeper voice than most women. The acne and the unusual hair resolved but the voice and thin head hair never came back.