hi there,

My name is May, I have been suffering from breathing problem since August 2008 and recently I found out that whenever I'm coughing, there a half blood in my saliva. I have a history of throat operation in the year 2005 , the doctors removed my goiter.Its a non toxic goiter . Does my medical history affects my present health condition. Also I'm suffering from back pain every time I stand and sit long. are there symptoms of a new illness?