muscle spasm
"I had surgery on my back in my lower lumbar for stoniness. I am on Valium and Hydrocodone/acetaminophen and the medicines seem to work during the day but when I get up in the morning I can't feel my legs. I then take the medicines and about 30 min's  later I'm okay. I still have the pain in the day but not as bad. I am also having erectile dysfunction. I hope this will go away after healing of the back."