Ureteral stent. It all of a sudden hurts a lot In my bladder and feels like something is falling out of my vagina. Had stents before never this feeling?

Stents. Ureteral stents can be very uncomfortable and can cause considerable bladder irritation. It is also possible that the stent has dislodged and is coming out the urethra. If this were the case you would be getting wet with incontinence. In any case you should speak to your urologist about your symptoms.