TMI!!!

I've been having horrible pains in my bladder after empty it like when I'm pushing to get the last drop out. Ive had chronic UTis for about a year and I've take antibiotics for them but they keep coming back. I think this is something else and its 10x worse. When I went to bathroom this came out of me...I'm not on my period and I won't be for a while. I've went to the ER over and over again and they just tell me the same thing and send me home. Any know what it might be? Thanks!