Please help!

Kate
I know I posted earlier but I can't take this. I usually have periods 7-8 days. Medium Flo unroll the last like 3 days then it's light and goes to spotting. Thai time I had extremely heavy for 2 days and now it's very light like spotting. My body hurts like crazy and I have the worst headache. I am so nessous. I never feel this bad. What is going on ?