i had what they called disc herniation with nerve impingement on my lower back L4/L5 & L5/S1 which caused numbness to my right leg & both legs were weak.. i often "fall to one side" as and when i was walking (like suddenly no strength on my knees).. & the pain on my lower back was like sharp pinching, or more like needles poking continuously which could make your lower body numb..

also on my neck C7/T1, & i have minor scoliosis too (both of these untreated yet, trying to find better alternative rather than surgery)..

did minimally invasive surgery on my lower back last year at Pantai KL (Bangsar).. try searching for Dr. Harwant Singh.. a very good & caring doctor, well recommended.. he has good patience, listens to your problems, very good in consoling you and giving advice (just like a dad lol).. the only problem is, you need to really queue from early morning as his patients are really uncountable..

hope this helps