David, very sorry to hear about your loss, I lost my dad in 2013 due to a horrible illness. It sounds like we may be close to the same age, our symptoms are similar and I too am undiagnosed as of yet. I’m in the process of applying for disability after spending 20+ years as a broker.

You’re always welcome to contact me via email philmaxbasin@gmail.com Also wanted to send my best to you and your family, hang in there my friend.