So I but turned 13 and I have lost lots of weight. I haven't had my period in a year but have started. (2 Decembers ago) It was normal when I started but not anymore. But every month around the end, I get moody and cramp at the same time my mom is on her period. Ive heard you have periods around the same time as your mom too. Is it possible to pms without bleeding??
Yes it is definitely possible, and likely!
Hang in there, you will adjust gradually with time.