Embarassing issue with sitting trot**possibly NSFW

Okay, so I’m using a throwaway because this is very embarrassing.

I started riding recently as an adult and ride English. I have had a kid in the past and certain parts of my anatomy have gotten very, very sensitive since then.

My trainer was getting me to sit trot but I could not handle it very long because the positioning put pressure on…a certain illusive lady bit and caused me to have a physiological reaction that was NOT at all sexual. I didn’t really react, but I could feel it and it was so uncomfortable and I did not know how to explain to my instructor why I was having issues with sitting trot. I thought maybe it was a 1 time thing and pushed through and tried again and the same thing happened.

Anyone have any advice for making this stop? Any garment suggestions? I want to be able to learn to sit trot.

I know this sounds fake, but this is a very real issue and I need help!