Amy
I had this happen and went to the doctor. With no other symptoms he told me it may have been caused by seafood I had eaten and that if it lasted more than 5 days to come back to check for something else. It stopped after exactly 5 days. Hopefully it was just something you ate. If you have any other symptoms - go to the doctor, and if it lasts for more than 5 days - go to the doctor. Good luck