bacterial infection
"Had a very bad cold - treated myself but then settled on my chest.  Went to Urgent Care when started to get chest pains and problems breathing.  Had ECG, and blood pressure taken, then checked chest for fluid build up.  Was put on a course of Doxcyline for 7 days, after the fifth day I didn't feel much better and hearing had gone in left ear.  Went back to docs, checked blood pressure - fine. They couldn't hear anything on chest or back,  oxygen levels were ok, but still problems breathing, no build up of wax in ear.  Told me once antibiotics had finished everything should return to normal.  They prescribed me an inhaler to aid my breathing.  Told me had had a severe chest infection,  now almost a week after being at urgent care and breathing and chest tight."