Well Wishes - In The Time Of Death - Says Is It A Normal Thing To Have Diarrhea Every Month When You Have Period?

Is it a normal thing to have diarrhea every month when you have period? - well wishes - in the time of death - says

Well, I'm a man who is really sick month period, I know it's normal, because many people say they have the stomach pain over time, but my first time at the time was very good, when I 12 years was, but now I'm 16 and I realized that a lot of pain really happened, I started with pain so extreme that sometimes I'd rather die than paracetamol when I sometimes found notising a Sunday evening and now I am especially diarrhea when I have time!
What do you think?
Is this normal?
Is it just may or may not?
What do you recommend?
I'm dying exxagerated period of diarrhea and extreme pain at the time!
PLEASE!