Cheryl, interesting observations.. Maybe more common than realized. I thought the post nasal drip was just me, started with the original symptoms and hasn't stopped. Always when you forgot to put a tissue in your pocket. Sleeping in the 'V' between pillows is the norm. Sliding down too far increases the morning soreness in neck and shoulders. Can't comment on the drool since the tonsils are further back.
I feel more normal now, thanks for sharing.