I am 44 year old men with lower back pain and right leg is numb. I also starting to wet the bed. I just had a physical 2 mouths ago. my prostate was fine. I was injured on the job in july of 09. I have not work since then. I had a head injury. my spine burns and I am unable to walk because when I put presser on my left leg my back hurts realy bad. I am scared because of the bed wetting
Please get an urgent MRI of lower back to rule out caudal equine syn Chat Doctor.  It is an emergency. You already have numbness, weakness and severe low back pain. Consult a neurologist or neurosurgeon soon