Hi. When I started using the yes oil based one it also burnt. It is now completely fine, I have to have pelvic floor physio and part of my homework was to stop looking and touching, I have not looked for over two weeks and I just massage the oil based one in twice a day on the outer and inner labia, not internally and the burning on the outside has all but gone.
I also feel "open" I had three 9lb babies in under four years with very eye watering episiotomies. As we enter peri/meno are pelvic floor muscles also start going South like the rest of us, especially after vaginal births.
I assume you have been checked for prolapses? as that can give a feeling of openness. Interestingly the worse " feeling" of my openness has gone since my long course of antibs for my undetected UTI.
Most women have small ones after having babies anyway even if they don't notice themselves. I have three, but small. Painful sex will be from drying, if yes is burning at the moment then be careful if you put Ovestin on your outer bits, I nearly orbited to the moon and back when used externally and internally.
I can't have sex in the near or distant future, but you can cuddle and do other things.
Sorry it's a bit over the place I keep going back and reading what you said, it's possibly hurting now as the scar tissue will have less elasticity in it from the possible atrophy, having sex shouldn't hurt your bowel, you may be feeling it in your rectum from the drying in the vagina, there are so many nerves down there it is hard to know what does and doesn't hurt, and once nerves become alive they pass messages onto the others to join in. Hence stop prodding and poking.
Almost all gynaes do not know about the vulva and outer bits they have a stab at it, my local uro/gynae had a " go" at what was wrong, when I ended up going to London I was passed onto a vulva specialist for the outer area. Gynaes know a bit here and a bit there about the vulva and out.