The "hard thing" you are feeling could be a poo in your rectum. Next time you use your bowels check again and see if it still there.
bwahahahahaha!!!!!! ROFL!!!!!! Ahhhh sorry that struck my funny bone

I'm pretty sure I didn't need to go at the time I felt it, but will make sure I take notice next time.. ROFL

Pelvic floor exercises - I'm trying, but there doesn't seem to be much strength down there any more!!! Hardly feels like I'm doing anything!