Have you been checked for
nes? They could cause blood in your urine (visible or not
).I was misdiagnosed with uti
's before my sto
nes were discovered. Ask for an IVP. They inject dye into
you, and x-ray your kidneys as it passes through. Also a 24 hour urine test is a good idea. They can find all kinds of stuff that way.
As far as you Dr. goes, be blunt with him about your concerns, and ideas.