I can say I know exactly what you describe. I mentioned this in another post. Yes I’ve had diff with discomfort pain and pressure, even burning with sitting. The only relief was to put or sleep with an ice pack between my legs to stop the sensation to my brain. That was in my twenties. It got a little better with time but I still, 23 yrs later, before Dr Pacik, I would have discomfort with sitting on hard edges of chairs or edges of couches. Couldn’t think of riding a bike or wearing jeans, and of course penetration. It was burning pain discomfort.
I can relate.