Anemic due to kidney problem: How to increase hemoglobin?

I am
Getting the same from my dr. I’ve been like this for over 20 yrs. I had gastric bypass in 2003 which comes with its issues of absorbs ion so keeping things I. My system is hard. I have had low red blood counts for yrs(3.0-3.9) and they say “ oh this must be your normal…. No, it’s not. I have all the anemia symptoms yet no on will help me
Treat it! I’ve had Iron infusions, B12 injections which I’ve had to take for years since the surgery and other supplements to try and help. I have inflammation from several things( fibromyalgia and food allergies) yet he keeps
Blowing it off. I’m so tired of being tired…. My prior dr who no longer lives In My state years ago ran a lot of tests to rule out several diseases but that was in 2007. I take gabepentin to help with the fibromyalgia and a few other normal things but that’s it. Would love to find a dr that could help me♥️

I've continually asked my doctors about the hemoglobin and red blood cells. None of them seem that interested in giving me an answer to this or finding the underlying cause. I have chronic inflammation most likely due to my 4 autoimmune disorders. some of my doctors keep telling me to take more iron, then one today told me to stop because my body is not absorbing it. My anemia is not iron deficiency related. It is causing major fatigue and it seems like none of the doctors want to address the problem, other than exercise.