I'm always so miserable b/c of my pms?

i have pms for 2 weeks. i'm always on a diet, exercising everyday and eating healthy,...

during my pms i gain so much weight. i gained around 5 pounds. i'm miserable for those 2 weeks with the weight gain, bloating, ibs, headaches. it's affecting my schoolwork also. then the week of my period i feel better. the weight slowly starts to come off but my bloating is bad so there really isn't a difference.

i lose like 7 pounds on the week after my period, it's when i'm happiest. then i'm depressed all over again for the next 2 weeks. is this normal?

i'm 14 fyi
I'm always so miserable b/c of my pms?
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