I took your advise and just did some research on Cauda Equina. Found a good site at
http://www.caudaequina.org. Your right, the L5 is part of the cauda Equina bundle(L4 TO S4) which gives rise to the sciatic nerve.
Looks like I have one of the possible causes "Stretching: e.g. by spondylolisthesis (slippage of one vertebra on another), and some of the consequences which include Incontinence, Impotence, Sciatica (affecting only my right leg so it's asymetric, back pain.
Another interesting thing I found is they say:
"An overactive bladder muscle(detrusor) may cause high bladder pressures and a reflux of urine up towards the kidneys, so regular checks may be needed to exclude any kidney damage." Now, my hemituria is microscopic (not Gross which means visible to the eye), and this type of Hematuria originates higher up in the urinary system, meaning the Kidneys, unlike Gross Hemituria which originates lower down (the bladder area). So Cauda Equina could be a possible cause of my hematuria as well. So, lot's more research to do here. Thanks for the tip.