I Have Stage 3 Renal Disease...a Lot (!) Of Leg

I have stage 3 renal disease...a lot (!) of leg edema - to the point my legs are seeping. My blood pressure today has been 83/53--which is a chronic problem..it can go high at a moments notice. Everytime I bend over or go to get up from a chair, thinks kind of 'shrink' around me and turn black for a second. I try to stand erect slowly so as not to trigger the black-out episodes-even if they aren't severe. I have chronic anemia, COPD, mitral valve problems, sometimes cardiac effusion which was resolved the last check they did. I do have SCLERODERMA, FIBROMYALGIA, and a Meningioma. Along with arthritic changes with ALOT of pain. Also GERD from reflux disease. I've had a gastrectomy because of watermelon ulcers. I'm plaqued with bowel obstruions -(a constant battle) ications, I don't think I can find an anesthesiologist that would put you to sleep. Now a Morton's Neuroma - 2nd dr. said it needs to be out--all the while injecting it to try sclerosing the thing. "But, I don't think I can find an anesthesiologist that will put you to sleep. I have good doctors - Rheumatologist, nephrologist, gastro-enteriologist. This is a summary of what I doctor for. I go to a pain clinic for Morphine relief This has been going on about 14 years...now this dizzy, funky feeling. I've COPED WITH ABOUT EVERYTHING ELSE. but I'm worried about this...