Mines has always been irregular anyways but mines are few and far between now a days I have put it down to the mood stabiliser Depakote as I have changed my anti-psychotic from Serequol to Aripiprazole (sp) but I'm very irregular. This year alone I've have my period 4 times. But it's been so heavy I can't leave the house as I'm having to sit on towels at times. I leaked in public and that's haunted me continually