For The Last 4 Months I Had Developed A Problem

For the last 4 months I had developed a problem with my breathing I am a non-smoker and never have I do have a level Ford Fusion in my neck and I'm also having problems swallowing the problem with my breathing can be at any time of day sleeping standing walking sitting especially when I'm cleaning the house and vacuuming or if I'm out shopping I don't have to be doing heavy exercising or running or anything like that I am a 61 year old white female at 160 pounds non-smoker non-drinker I need help I don't know what to do I don't know if this could be cancer it sounds like it may possibly be