My name is Len and I am new to this so please bear with me. My wife is 86 and was PSP diagnosed approximately 8 years ago. She is now wheelchair bound, has a very soft and unclear speaking voice, has very bad sight from dry eyes. She has begun to have a problem with swallowing. Our youngest grandson, he's 37, is getting married in February and she wants so much to go to the wedding. It's a 300 mile trip. We have a wheelchair accessible van so transportation at the present time is not a problem. My question is "what is likely to be her situation in swallowing over the next three or four months." How rapidly does the swallowing problem progress normally?