abdominal pain on both sides and lower part

Since the symptoms you are experiencing have developed soon after the procedure for getting tubes tied, it is very likely that they are result of abdominal adhesions.
Abdominal adhesions are bands of fibrous scar tissue that form on organs in the abdomen, causing the organs to stick to one another or to the wall of the abdomen.
These bands of scar tissue commonly form after every abdominal procedure as a side effect and may block the bowels partly or completely.
Adhesions that partially block the intestine from time to time can cause intermittent bouts of crampy abdominal pain.
When the bowel obstruction is more significant, it will cause more symptoms like severe, crampy abdominal pain, nausea and vomiting, swelling of the abdomen, and, inability to pass gas and absent or infrequent bowel movements.

Consult your gynecologist!