@PamDenick - I also bled onto my school skirt - everyone noticed and laughed and pointed.
I bled through my trousers at work.
One fun day in the loos at work, I got tangled up with my security pass while juggling (not literally) with sanitary products - ended up having to wipe blood of that too.
I have fibroids and the heavy bleeding means I have low iron and I'm losing hair by the handful. I am on the list for an endo-ablation and it can't come too soon.