Anyone ever have this???

Nat

so my periods are usually on time they last about 6-7 days. every now and then I have mid cycle bleeding but nothing too bad. last week I had such bad bleeding,i ran to the restroom and it was horrible with huge huge clots.I had to leave work. it was bad for one day then for the following 4 days it was spotting. it scared the crap outta me.I went to the doctors just to be safe. waiting until I get results, she said if results come back fine it is just a hormone imbalance and I would need to take birth control. anyone out there every had this?? or have a hormone imbalance?? if so is there anything besides birth control to fix it? thank you