For many months I have had episodes of choking and coughing but a camera down the throat (cant remember proper name) found nothing concerning. Already diagnosed many years ago with hiatus hernia. For the last many weeks have had a cough which is severe, restricting my breathing and makes me feel really hot with severe headache when it happens, Worse in the cold but stillhave it indoors. I have been on steroids over xmas followed by antibiotics and an inhaler, but no improvement.  What is bothering me is three and a half years ago I had a double mastectomy invasive lobular breastcancer, and I am worried this may be a secondary cancer, but my doctor does not seem to think of this.Should I mention it or keep battlingon?