Yes , when we lye down and had episode of GERD then fluid along with gastric juices regurgitate in our nasopharyngeal area and orophyrangeal area which results in Eustachian tube dysfunction whose one end is located in oropharynx and other in middle ear. This tube help in pressure equalising inside the middle ear. So this may be a reason for ear ache in ur case , kindly discuss ur symptoms in details for further guidance and prescription

Is it having fullness or any discharge? R ur nose blocked?? Few questions need to be answered