Dear Sally,
Visible blood in the underwear but nothing in the toilet. That could come from urethral irritation or vaginal irritation, both of which could cause urinary symtoms.
Hey, you've got real symtoms. If your doctor can't find an answer, he certainly can't ge upset by your coming for evaluation. His lack of answer doesn't mean there's nothing wrong.
I have the advantage of being able to do my own urine cultures whenever I have symptoms. Not one has been positive except right after the cancer surgery 6¾ years ago. But if I didn't know the culture was negative, I wouldn't know it's time to pursue other possibilities.
-Warren
TaG3 + CIS 12/2000. TURB + Mitomycin C (No BCG)
Urethral stricture, urethroplasty 10/2009
CIS 11/2010 treated with BCG. CIS 5/2012 treated with BCG/interferon
T1G3 1/2013. Radical Cystectomy 3/5/2013, No invasive cancer. CIS in right ureter.
Incontinent. AUS implant 2/2014. AUS explant 5/2014
Pediatrician