Hi I just tried to research if it's normal to have large blood clots I have not never taken birth control I am 22 and had an issue of large blood clots sizes of my palm every 10 mins this goes on through my whole period which will last for 5 days I have horrible cramps that doesn't stop till the last day of my period I never have a normal 28 day cyle it's always all over the place I don't know what to do can someone help please!!!!!