I hope your Dad is doing better. Could it be something with his ears? My Dad had gotten really dizzy while driving, went to the dr's and ended up getting sick. They put him in the hospital for dehydration and it turns out he had a problem with his ears! Just a thought.
Your family is in my prayers.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory