HELP!!!

Ok so I am not sure what's going on and idk if I need to go to the doctor or if what's going on is normal. So basically I have discharge A LOT. Most of the time it's brown or white, today I felt something come out while I was using the bathroom and it was this chunky white thing with some blood spots, I'll randomly have shooting pains in my lower abdominal as well. Sometimes to the point where I can't move, and I will not be in my period. Any help would be awesome!