Never assume you are not pregnant!! This is my number one rule. Yes tubal ligation
are pretty effective, but they are not 100%. Check an over the counter test just to be sure.
These are otherwise common symptoms with lots of causes. It would be best to just wait until tomorrow and see what they say after you are examined. The possibilities might include: Reflux disease, gallbladder
disease, bowel related disease, etc. Good luck!