With the neurological testing you have had, it is less likely that MS is present.
That being said, MS can sometimes lead to neurogenic bladder - which can increase the risk of bladder infections.
The cystoscopy you had is a pretty comprehensive test of the lower GU tract - things like bladder cancer would then be a less likely cause of blood in the urine.
Regarding the urinary symptoms, you can consider urodynamic studies. These are specialized tests arranged by a urologist to determine lower GU function.
You can consider these tests in conjunction with your urologist. If MS is a concern, you can discuss whether a second neurological opinion is necessary.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_b