My whole story help needed

Hello Guys
I have been diagnosed with left sided UC in 2016 with 30 cm inflamed colon. In this 10 years i was using only pentasa tabs and few times i used pentasa enema.
However since 1 month im seeing blood again in stool and the enemas are not working, i did blood tests and everything was normal even the C- reactive protein was 2 and in a very normal range.
I dont have urgency and i dont have abdominal pain i just have gases little discomfort but im seeing blood in my stool and this is stressing me alot and even making my tinnitus worst !
Anyone can help or give an advice for me ?