Hey guys, the other day I was talking to my girlfriend, who was in a very bad mood because she was on her period.

Now after talking to her about it, she told me that its "ok" because she only has her period 3 times a year?
So at this point I'm thinking "wtf"

She has told me that when she does get her few periods, that she has to take medicine (which I have heard is common) but also she said she hasn't told a doctor because she is afraid, but it also makes her happy because she doesn't have to put up with it often. And her mother just says she is lucky.

Now I'm not sure how common this is, but to me it doesn't seem normal and so it kinda worries me, any advice?