I Like To Use The End Of A Smooth Handled

I like to use the end of a smooth handled plunger in the shower so I can control the pressure on my prostate while masturbating. This time there was no pain during or after and I've had a little redness in my stool previously but this time I pee'd blood. And not just a tinge of red in the urine but like dark red. Not much but enough to worry me. There was a couple chunks on the shower floor but not sure if it was from the pee or from the removal of the handle. What do I need to do. I've never been sexual with a partner in anal and only been alone in this area of pleasure. So the only things inserted have been toys