Ok, so I've passed tissue during my period, and it wasn't really a big deal. It sometimes happens during a really heavy period, but this time I passed a LOT of tissue with really bad cramps. It stopped yesterday and my period slowed way down, but now it picked back up with lots of little clots?

Should I be concerned? Is this normal?

I don't have health insurance, and I can't just pop into the ob/gyn so any help is appreciated!