The findings on Magnetic Resonance Imaging are reassuring. They show early signs of ageing in the lower back but these changes have not compressed any nerve. This means that you do not need any operation. It is possible that your symptoms can be relieved by simple measures such as observing some precautions and exercises to strengthen the lower back.
The precautions are:
a) No sharp bending of the spine forward or backward. Mild movements as when we wash the face or brush teeth are permissible.
b) No carrying loads. Example: no carrying a bucket full of water or a suitcase weighing 20 kg.
c) No squatting on the floor or using an Indian toilet. If possible switch to a commode (European toilet) or obtain a stool or chair with a hole cut out in the seat to fit an aluminum pot. After passage of urine or faeces into the pot, it can be cleansed, dried and replaced in the stool or chair.
Your doctor or physiotherapist will teach you the exercises needed to strengthen the muscles in the lower back.
I suggest you consult a senior neurosurgeon or orthopaedic surgeon for a complete evaluation of the cause of your symptoms. You state that you are also suspected to have a deteriorating disc in the neck. This needs to be checked and appropriate treatment prescribed.