I have been experiencing these big chunks of I don't know what during my period and it is very painful. I was wondering if any one has experienced this.

I have had chunky periods before but they never hurt. Consult your doctor!

I think it's time to see a doctor. I have occasionally had some periods like that but it was only the first day or so, and it never hurt. I would get checked out just to be on the safe side, hopefully they can help make it less painful for you too.

When you have your period you shed the lining of your uterus since it's not needed for a baby. And cramping is aso normal during periods. But if the pain is severe or the chunks seem unusually large you should definitely see your doctor to make sure there isn't something else going on.