I agree with the reply about nutcracker syndrome. But you actually asked, is there any other kidney diseases that come on suddenly?
Let me say this. Iga nephropathy for instance isnt sudden, but the patient feels that it is. Life has went along fine (no idea blood was in urine) and suddenly,,,,,,,,,the kidneys are inflammed..Etc....
Alport's , the patient might have some hearing/vision probs but are not linking it in their minds to whats happening in their backs, therefore, again it will feel as if it came on suddenly, when in fact your born with it.
There are alot of glom. Diseases and I dont feel comfy telling you it is nutcracker syndrome, you need to do a 24 hour urine to test for blood/protein/and some other levels.....It will tell all.
I also have the rib pain,,,,,,,,even wondered if it were cancer in my ribs....I was told iga nephropathy, now I know its alport's.
Please make certain of your diagnosis....Its your life honey and you have a right to know. 24 hr urine will rule out any kidney disease/
hope this helped and p.S. I know what that pain is like,,its dreadful!
Kimmyk