Hi, I Usually Have My Period For 8-9days. My Last

Hi, I usually have my period for 8-9days.
My last period was dec12th-19th and after that it stopped for 2-3days and I started spotting and it hasn't stopped till now.
It actually got worse because now i have heavy bleeding... like the second or third day of my regular period with blood clots but I'm still off my period so I shouldn't be bleeding like this. I'm also experiencing cramps and get a sudden dizzy spell then feel like a head rush kind of thing while sitting for about 2-3 seconds at random times.