Conversation: The conversation between human and AI assistant.
[|Human|] I am losing my balance alot and have fallen several times. I had back surgery 5 years ago and got MERSA and could not even turn over in bed for a year. I worked hard with the therapy they gave me I did not want to end up in wheelchair all the time, but in the last few months my balance has gotten really bad, I feel like it is all I can do sometimes to just stand up, and it is worse at night. I am numb in places in my back and on my legs. What is wrong?
[|AI|]  You need to see a Spine Surgeon / Neurologist urgently. These may be a presentation of Cervical spine problem or brain which may need an urgent attention. It may also be due to problem in thoracic or lumbar spine. If you have weakness of pain / numbness in your arms also, it is more likely to be in Cervical Spine. With your history of previous surgery on back (I take it as lumbar spine) chance of having a problem there can't be ruled out. In any case you need to see a physician and get investigated appropriately.