I hear ya about parents. Suddenly us kids have become the parents of our parents.
My parents are in their 80's and are sooo stubborn when it comes to asking for help around the house. I still catch my 84 yr old mother climbing up on a stool to dust a shelf - I tell her all the time that if you fall it will be very very bad and she just blows me off.
You just can't get thru to them. We all worry about our parents like we do our own kids now.
Glad to hear that your dad is on the mend.