Dear Suzanne,
I think you need to have an evaluation by both a urologist and a nephrologist. First for the blood in the urine (hematuria)by the urologist and for the proteinuria and hypertension by the nephrologist.
Hematuria is the medical term for your condition. It is important to have a microscopic cell count done to determine if this amount of hematuria needs to have a full work-up. Above 3 RBC/HPF is suggestive of significant hematuria that needs work-up.
A full work -up consists of a history and physical to direct the studies ,an IVP, a cystoscopy which should be done by a urologist, and a cytology looking for cancerous cells in the urine. About 30% of patients at our institution have some pathology causing there hematuria.
Considering the symptoms that you have, a urinary stone could be a possibility. Keep in mind, some stones are made of Uric acid and are not seen on IVP. But the contrast part of the study will show a filling defect or obstruction.
You could also have an infection. If you are febrile and have flank pain, you should be evaluated for a possible kidney infection. Also, blood in the urine could be caused by a simple infection of the bladder, which could be found on the Urine analysis(UA). If you have a bladder infection, you may just wait until it clears. If the UA is negative, the cystoscopy may not be necessary.
A third possible diagnosis would be bladder cancer. Some times bladder cancer presents with blood in the urine and irritative symptoms. These patients usually do not have flank pain , but it is possible depending on the size and location of the tumor. This is why we perform cystoscopy, to rule out any suspicious lesions in the bladder. The cystoscopy also allows the urologist to examine the anatomy of the bladder and position of the ureteral openings in the bladder.
Our last diagnosis would be idiopathic, simply meaning, we don