I had my Levovist ultrasound done in October and while it isn't the most comfortable test in the world (my FS recommended 2 period pain tablets 45min prior to the procedure) it proved what we all thought, that one tube was completely blocked and a partial blockage in the other.

While I felt crampy pains for an hour or so afterwards (the uterus wants to get rid of the dye, but luckily it doesn't take long to be absorbed back into the body), after a hot water bottle and a lie down it was fine. No issues the next day.