Hi and thank you so much for this query. I am so sorry to hear about this nauseous feeling. Please, a single symptom would not be able to help us suggest a diagnosis. Also, not all symptoms have an underlying cause that needs to be addressed. You may be concerned about the possibility of a pregnancy, though possible, the chances are very rare given that you had your tubes tied. If this should persist beyond 3days, then seek for medical consultation. For now, there is no reason to get too worried. I hope this addresses your query fully. Thank you so much for using our services and please feel free to ask for clarifications if need be. I wish you the best of health. Dr. Ditah, MD.