It's very unlikely that your tubal could reverse itself. When done, the doctor actually cuts and cauterizes (burns) the end of the tube sealing it shut. I wonder if maybe you're experiencing ovulation which would occur every few weeks and last only a short time. Or maybe you have a cyst on your ovary which is causing the pain during ovulation. Your doctor could do a pelvic ultrasound to check your ovaries or to look for the cause for your pain.

I had a tl when I was 21 since then I have had to have 2 surgeries both for cists.Alot of other women I know have the same problem all starting after they got "fixed" I wish I had never gotten it done. I get the most awful cramps that would literally put me to the floor. After a while it felt like a something popped and then I would be fine. My doc told me that it was just cists and they popped and went away. It can also make you throw up, run a fever, and feel like you have the flue. If you get to where the pain wont go away (which I did) you may want to see a doctor. I ended up with hemagoratic cists that had to be removed.But usually they will go away on their own.