Hey, there's another Lisa here! (that's how Lise is pronounced--it's Danish) But I drift.

Cherinyc--I'll start out by saying that although I am a women's health care provider (a certified nurse-midwife), I can only say that the others' guesses are as good as mine. I doubt it has much to do with the cream, as most of that probably rubbed off on the chamois and into your skin.

Sooo....if we were in the exam room, I'd ask if there were any unusual discharge or odor. You do not have to answer that here! But if there are, I would tell you to go in for a check up, specifically a "wet mount", to look for bacteria.

Otherwise, it might be from the position and movement of the riding that trapped air inside. That's my guess.