My father-inlaw has been diagnosed for the past 15 years or so. PLS is as not as terminal as ALS is, and much much, much, more rare. You have a 1 in 30,000 chance of getting ALS. 1 in 10,000,000 chance with PLS. It's a disease of exclusion, as there is not one test for it. All other diseases must be ruled out.
My father-in-law is in a wheelchair, and only his immediate family can understand him when he talks. He has complete use of his mind (sharpest guy I ever met) and is able to type emails, role his own chair, and work on his model train set. He is also able to feed himself to an extent. He even authored an autobiography. It took 7 years for him to be diagnosed - the Mayo Clinic couldn't figure it out. It was some doctor in Michigan. I think the progression of the disease has taken it's course, as he is not getting worse. What does affect him is his advancing age (72). Unrelated medical issues seem to creep in as well. There was a scare 3 years ago when he got a rare virus he caught in Arizona. His weakened condition made it tough, but he got through it.
It seems to me that he has strength in his muscles (what a handshake!), they are just so cramped up, he can move them slowly and slightly. He drools, as he has little facial muscle control. He takes 2-3 pills a day of various medications.
His care taker is also his wife, who has been a saint over the last 15 years providing 24 hour care. She is having joint problems, probably as a result of the care taking over the years. She has had a knee replacement and been diagnosed with advanced carpul tunnel in both wrists.
He was a marine in the 1950's, and is Sicillian - so he views himself as a tough guy. Without question this trait has helped him cope, but for a guy who was very active and physical, there's no doubt it's been more than difficult. He's adjusted well, however. His condition has had an interesting side affect - he's a bit more emotional than ever. He laughs more, as well as cries without being able to "stop it". It can be fun to see such emotion coming from him, especially since he's "so tough".
Don't know if this will help anyone, but I thought I would share this with people. He's an amazing man, really, and unfortunately this disease has made it hard for him. It's the only thing that can keep him down. His spirit is strong.