I'm A 23 Year Old Female Last Week My Period

I'm a 23 year old female
Last week my period lasted longer than usual, (2 extra days) after that I started experiencing lower abdomen pain and it worsened to sharp cervix pain every time I stand up, it hits me every few seconds when I'm standing and Im also experiencing heavy discharge that's watery and a bit bloody sometimes. Sometimes the pain becomes so severe when I'm standing that I get dizzy