I am 40 years old. I have been having abnormal uterine bleeding for 4 months. Nothing was found on the ultrasound. I have had several blood tests- no anemia. I also have a big piece (quarter size) of something-tissue or discharge- in the toilet almost every time I go to the bathroom. It looks tissuey-if that makes sense. I have nausea, headaches, lightheadedness, and dizziness a lot. I had my ears checked-everything was fine. Recently I got a blood test back that said my creatinine level was 1.15 and GFR was 52. So I am wondering if those symptoms could be caused by one of my issues or if it is something totally different. I'm not sure where to start-I have so many different things going on!