... but then he had to go fall again today (24th March)

 He actually stumbled, and sort of fell right in front of me. He seemed fine at first, but then his eyes turned up and he couldn't hear me for about 30 seconds I'd say (probably less, but it felt very long). Luckily Charles was home and could get him onto his feet.

I'm starting to feel optimistic ...

 The last fall Geoff had was the 14th December last year. He is driving again, making coffee again, joking more. One thing, he has a terrible rash: he is constantly scratching and hasn't found any cream or ointment that helps.