Idk whats wrong, help?

I had my nexplanon removed in August cause I thought it was the cause of my severe abdominal pain. And I haven't had any pains since that so I thought I was right, until last night. I had a horrible pain like before and it usually happens after I eat. I was in tears last night and it was like this as I was having a bowel movement. Idk why. That's one thing, has anyone experienced this and know what it is? Next question, today I've had cramps like my period and pressure. So I took midol for pain and thought the pressure was cause I had to pee. But the midol didn't work and the pressure didn't go away. Also my boobs hurt. What is going on?