Yes its an age thing.
Unfortunately you'll just have to work out how to cope - suggestions already made are all worth looking into.
Two further bits of advice (both from the gliding community):
- don't be tempted to restrict how much you drink before the flight or during it; dehydration is a real risk and it can seriously impair your mental function, not a good idea
- similarly the need to pee can be very distracting, so its better to accept it and get it over with before it gets too urgent (unfortunately I'm not sure that any of the equipment based solutions are 100% reliable)
As an aside I recall reading in a biography of a wartime fighter pilot how he managed to pee all over his compass which then iced over so he couldn't see it to navigate - moral for today being to keep the iPad well clear, I suppose.