I have had back pain since Sunday...I actually thought possible kidney infection...I have been using a heating pad off and on, I got the beginnings of a cold or bronchitis (have copd/emphazema) and was given Levofloxin and predisone..my chest feels heavy and hard to breath but it has been in the teens here. today when I walk and then sit down it radiates the pain across my back lower but not below the waist line. I am 68 but never had this before.