Please advice needed!

So AF came on the 1st. And it was really light. First it started of a soft pink and then brown and dark red. And lastnight it ended. But during it I had horrible cramps! Extremely horrible! All in my lower stomach. I couldent even eat because if I did, after I would feel so sick. Well I felt so happy when I saw my period was over. But I'm still having these horrible pains in my stomach to the point that I'm in tears and I can't sleep at night. Does anyone know what this could be? I just wanted to see if I can figure this out, that way I don't have to go to the doctor because I been going so much lately. Because I been feeling so dizzy. What could this be? Please no rude comments, just looking for advice! Thank you lady's in advance