Can there be a connection between a rectocele and a tight psoas muscle..?

I feel like I have all the symptoms of a rectocele, pressure in the vagina, need to urinate often (when I move around, not so much when I sit), slight incontinence. This problem presented itself after using the bathroom a lot (UTI) then disappeared, and then again after straining due to constipation.

The weird thing is, it is on the left back side, of the vagina and it says online you feel it only on the back, not just one side. I was wondering if the left psoas tension could have a connectIon? (Forgot to say I have been struggling with a left tight psoas for some months now. It is good when I rest, not so good when I move and walk.)

Thanks!

(P,S. had a transvaginal ultrasound 3 months ago, everything looked good there).