i have long history too- had a blockage once that caused really bizarre thing- blood cells would back up behind the stone- and woudl take on the shape of the tube they were goign down through, and every now and again, they owudl let loose and come out past the stone bockage i guess when the pressure gto strong enough to drive them out, and they looked like worms when they came out
I’ll post a link to a photo- it’s pretty gross though- I must have passed several dozens of them over the time i had the blockage- took some to the urologist who determined they were just blood cells that formed- but wow was it unnerving to go through not knowing what the heck was happening
They put a catheter in for a few weeks, and when they took it out, stones had attached to the outside of the catheter, which felt like yanking barbed wire out when they finally removed it- Doc had the nerve to say “Hold Still!” Then he saw the catheter exterior, and said- no wonder you had so much pain- sorry”
The link of the clots is again kinda gross- as it had bloody urine too- so just be warned-
P.S i found out that salty snack foods was a huge contributor to stones- since cutting them out and going on allopurinol i haven’t had and more pass, although there are still a few in the kidneys that attempt to pass every now and again- but so far, no more blockages-
Ouch. Just reading your post makes me wince.