From the description of the MRI report it appears that there is a significant degenerative change in your lumbar spine causing neurological symptoms. The severity and spectrum of symptoms and signs will increase with time. so you need to act promptly. Get youself checked by a spine specialist either a orthopaedic surgeon or a neurosurgeon . Depending upon the neurological status a descision to start appropriate treatment can be taken immediately. Untreated it can lead to loss of bladder control and even paralysis of the lower limbs.