question: My lower back has a lot of swelling and pain, the one side of my buttons has quite a large lump in it. Also, I have now developed bad pains all through my legs which is causing me to have pain while walking. I went to the doctor and she said it was Cocydinia and gave me pain killers. That was last week and now the pain is worse than it was when I went there! What could this be? Should I get it checked again?