What Causes Painful, Tingling, Numbing Sensation On Entire Leg?

Question: I happened to read up on partial cauda equina syndrome and the symptoms sound very much like mine. What are your thoughts?

SYMPTOMS: I have been experiencing a painful, tingling, numbing sensation on my entire left leg and the same symptoms on my right leg below the knee. It starts in my vaginal area and then goes down my left leg and the gets my right leg. I am otherwise healthy. Although, I find it difficult to hold by urine and sometimes cannot hold it. I went to my neurologist and he performed many tests which all came back normal. He did say I had hyperreflexes of my knees. At one point, he was thinking MS but the MRI ruled that out. I am still experiencing the same symptoms and have no idea what's going on. It lasts about 30-45 seconds but occurs many times during the day.

I am frustrated and don't know what I should do next. My MRI findings were: The L5 body is somewhat elongated, with the superior-inferior aspect relatively longer compared to the AP diameter. There is asymmetry in the pedicles with the right-side pedicle of L4 being smaller than the left L4 sided pedicle. No spondylolysis. The conus ends normally at the T12-L1 level. L5-S1 Intervertebral disc rudimentary but hydrated. There is left foraminal encroachment. The left L5 root is better appreciated on parasagittal images but does not appear displaced. The right L5 root is widely demonstrated. L4-L5 - Disc desiccation. Disc osteophyte complet impresses mildly on the ventral aspect of the sac. There is right foraminal encroachment. The right L4 root, although well demonstrated, is not as well seen as the left L4 root. The traversing roots are demonstrated. Everything else in the MRI is normal. I'm afraid the doctor is missing something. He suggested I go to a research hospital to get a better idea of what is going on. What are your thoughts? I happen to read up on partial cauda equina syndrome and the symptoms sound very much like mine. Thank you female 36 yrs.old