It's quite difficult to get a message to someone you care about and sympathize with. So this is my try just in case Terry might stumble into one of this forum by chance.
Dear Mr. Pratchett,
a few years ago my gandmother died - for many years she had alzheimer and i know exactly how you must feel now. The thing i learned out of these years of taking care for her is, that you can still have wonderful days and the only thing that can keep you from it is not the disease, but fear. - Never fear that you might be a burden for someone close to you! They will still love you no matter what. Keep this thought planted in your heart as an ancor to reality. (I must say this now - because when fear has its seed planted this disease will foster it well.)
My best wishes go with you and may your days be long and happy.
We are all with you.
Ines
Dear Mr. Pratchett,
a few years ago my gandmother died - for many years she had alzheimer and i know exactly how you must feel now. The thing i learned out of these years of taking care for her is, that you can still have wonderful days and the only thing that can keep you from it is not the disease, but fear. - Never fear that you might be a burden for someone close to you! They will still love you no matter what. Keep this thought planted in your heart as an ancor to reality. (I must say this now - because when fear has its seed planted this disease will foster it well.)
My best wishes go with you and may your days be long and happy.
We are all with you.
Ines