HAVING A HARD TIME FALLING ALSEEP AT NIGHT. I HAVE

HAVING A HARD TIME FALLING ALSEEP AT NIGHT. I HAVE TO SLEEP IN CHAIR WITH MY BODY ELEVATED.
MUSCOUS IN THROAT LIKE A DRIP. IF I LAY DOWN IN BED MY HEAD HAS TO BE ELEVATED WITH TWO PILLOWS. I SLEEP ON MY SIDE. I WAKE UP COUGHING. THERE HAS BEEN CONSTRUCTION AT WORK WITH ALOT OF DUST. IT SEEMED TO START WHEN CONSTRUCTION STARTED. MY NOSE IS STUFFY. SHOULD I BE CONCERN OR WHEN THEY STOP THE CONSTRUCTION SHOULD IT GO AWAY.
THANKS