A quick update on my dad - he possibly does NOT have ALS. Apparently there is a type of cancer that produces ALS symptoms - he has now been diagnosed with that. The great thing is, doctors can do something about cancer. Also, once the cancer is removed, the ALS symptoms tend to fade over a few months. He's going for surgery on the cancer later this month, and we pray that this will take care of the issues.
Praise God for his unusual and amazing blessings.
(updated on 10/8 to correct a few details)