Wow, I've read so many of your posts. I too am suffering. I have passed over 50 kidney stones in the past about 20 years ALWAYS from the right kidney. 3 weeks ago I went to the ER and found that I had my first kidney stone in my left kidney via CT scan. The scan also showed my right kidney to be enlarged. So, my doc had me get an ultrasound of both kidneys. It was found that I had a 7.9mm non-obstructive stone in my right kidney. For the past several years I have had severe throbbing coming and going in my right kidney. Docs were always basically yeah yeah it's back pain. I go to the urologist on the 29th and I hope to God he gets to the bottom of it. I throb all the way down both of my ureters on the right side. Yes, I have 2 ureters on the right side that go all the way down to the bladder independently of each other. I have small veins and arteries..As a matter of fact my arteries spasm. Perhaps this is related??? Help? Anyone?