10+ days period

Hello ladies. I’m 31. Wondering if anyone has experienced a period that lasted more than 10 days?

Mine started on the 25th of July, very VERY barely there light pink. Was like that for about a week. Then dark DARK brown for about 4 days. Suddenly yesterday around midday it’s bright red and strong. Today it’s like my uterus is mad and throwing a fit. It’s HEAVY and bright red. I’ve also been very lightheaded, dizzy, and with headaches.

Any experience with this?