(Concern) Irregular menstruation

I have had quite severe menstrual cramps since I was young.

I think I was too harsh, but there are really many people around who are struggling.

Still, after having children and getting older, I feel like I've improved a bit.

But the problem is that my menstrual cycle is irregularㅠㅠ

Sometimes the cycle is regular for a few months, but occasionally it skips or is delayed by a few days.

Every time, my stomach, head, and whole body hurt so muchㅠ This feeling is also very unpleasantㅠㅠ But since it's a chronic illness, I don't think I can fix itㅜㅜ

Do I just have to endure the menstrual cramps??ㅠ