Hello 
Thanks for writing to HCM 
According to history you have degenerative disc changes in spine in lumbar region.
1.You have disc bulge at L5-S1 level and bulged disc is causing minimal impingement on a 
nerve root.
Degenerative changes occurs due to aging and development of weakness in annulus 
fibrosis which allows herniation of disc.
I don't think you need any surgical intervention at present. You have minimal impingement on nerve roots. 
Treatment for pain includes 
physiotherapy or surgery. 
Effectiveness of both modalities are same.So,physiotherpay should be tried first. It causes strengthening of Para spinal muscles and it prevents further changes. 
Surgery should be the last option. 
There are also medicines like capsule 
pregabalin available for pain relief. 
Other pain relieving modalities are Ozone ablation,
Radiofrequency ablation,percutaneous disectomy etc.
Treatment can be planned after consultation with neurosurgeon.
You should also modify your life style like don't abruptly bend forward and avoid standing for long time.Don't lift heavy objects.
Get well soon. 
Take Care 
Dr.Indu Bhushan