My menstrual cramps are irregular.

My period is almost quite regular.

My menstrual cramps are not that severe, actually.

Once every few months

My legs have been feeling stiff even before my period.

Once it starts, I have a lot of trouble with menstrual cramps.

I end up lying down almost the whole day.

Occasional menstrual cramps that occur only sometimes

Maybe because of some illness.

I'm curious if it varies depending on the condition at the time.