kidney disease without protein in urine? does this sound like kidney failure?

Is it possible to have CKD or kidney failure without protein in urine?

Last week my masseuse found a knot in my back that she suspects could be inflammation in my kidney. I've had some weird symptoms popping up over the last month like foot/ankle swelling, profound fatigue, leg cramps and blurry vision. This last week though I began developing SEVERE flank pain (like 9 on a 10 scale), back pain (started out lower, now entire back), horrible nausea, horrible headaches, shooting pains down my legs, metallic taste in mouth, dizziness and loss of appetite. Not to sound melodramatic but I feel like I'm dying. The pain is constant but the intensity seems to be moving in 24 hour cycles. Today I feel awful but I was able to shower/get dressed. Yesterday I couldn't even get out of bed. I slept for 16 hours. It's been going in that pattern for the last week and a half.

My doc did a urine culture last week, got results today and there was no protein in my urine, but I had 3+ kenotes and a large amount of leukocytes. Blood work from a month ago just came in and my kidney numbers were off a month ago: BUN (32), Creatinine (1.8), eGFR (33). Between the symptoms and the blood test I'm thinking it sounds like renal failure, but could it be CKD without protein in the urine?

According to my doc my BUN and creatinine aren't good. Even on the lab results they are noted as way out of range. He's retesting since these numbers were from a month ago and my symptoms now are indicative of a more advanced stage (we both think all these numbers might be worse by now given my symptoms). I definitely don't have kidney infection/UTI, I have none of the symptoms (fever, burning when urinating, urinating a lot, foamy urine). My doc thinks it could possibly be an advanced stage kidney disease but we won't have a better idea until my tests come back in tomorrow.

Thanks for taking the time to respond!