PCOS??

So I was just reading into PCOS because I saw some comments on some peoples posts and I had never heard of it before. Some people who had mentioned PCOS had said about irregular periods. I’m 16 and I have Irregular periods. I sometimes go a few months without having one and I think the longest I went without was 6 months.

When I was reading about it, it said something about hair loss and trouble losing weight. Fairly recently i’ve started losing quite a lot of hair (posted about it) and I was worried about it because it had never happened before.

And about losing weight, i’m about 5’8 or 5’9 and I currently weigh about 12 stone 4 and the beginning of the year I was about 12 stone 12. I haven’t really been doing any exercise, but since I started college, i’ve been walking a lot.

Should I talk to someone about this? and if so who?