Christrd, I know what you are going through! I was at stage 3 and eventually ended up with kidney transplant. Your bilateral foot pain needs to be controlled and kidney failure has many symptoms: nausea, exhaustion, electrolyte imbalances, dizziness, blood pressure up/down, palpitations, and much more. At this time I think you need disability . Once I got my kidney transplant it changed my life. Keep communicating with the rheumatologist and hoping you get relief soon.