I am worried that I might have breast cancer that has metastasized 

I had always lumpy breast which doctors found to be benign but are painful and I have been told that pain isn't a sign of cancer, but the pain has steadily grown in intensity and now I have shortness of breath, hoarseness, fatigue, mild fever which have been going on for 3 weeks. I've also noticed that my upper abdomen has bloated up bigger than it used to be.

I used to be a cigar smoker, smoking one cigar per week. I don't drink but I don't exercise either

I am 56, female, overweight but has never had a history of breast cancer nor any of my family member

Please help.