Hi, I have had a persistent dry cough since 19 Feb, had xrays of chest all ok, blood tests seem to be ok, except something about my white blood cells, get out of breath easily, always tired, had 3 lots of antibiotics, dr taken me off blood pressure tablets, only a little coughing for 3-4 days after being taken off bp tabs and then back to coughing all day and night. My bp is ok, don't have a temp.Had a weird sensation on left side of neck about 2 weeks ago, told dr and she felt and said it was nothing. Recently I have developed a really sore throat and have coughed up blood with my phlegm on the odd occasion. Over the last few days my throat aches and I have developed a lump on my left jaw line which is very painful. I do not drink or smoke, am a insulin dependent diabetic.Dr also gave me a long lasting steroid injection as this helped me with my coughing 3 years ago, but has not helped this time. Hope you can help.