im 21 yrs. i had vaginal birth 14 months ago. i stopped breastfeeding 10 months ago. after a few weeks i had my periods with no pains, until about 5 months ago, then i started experiencing excruciating and unbearable pre-period pains, which i neva had prior to having a child, i also expeience the same pain during my periods :'( :'( :'( :'( p. what could be the problem?