Hello @Useless - what a wonderful user id 
Welcome to this community which I hope you will not find to be euseless Indeed, I hope it will be very useful to you and your hubby.
I am pleased your hubby is doing well after his stroke and pleased he has been given the OK to travel to Greece.
It is understandable that he (hubby) is fearful of having another stroke, but perhaps he should take some reassurance from the team that has said he is fine to travel. At the end of the day, the risk of having a stroke is always there and that unfortunately is why they happen 
I don’t have to make this decision, but if I was in that situation, I would likely choose to go on the holiday, give myself a break, get myself recharged and then come back and face the world There are only so many precautions we can take, but the number of holidays we can take are not that many and so we should make the most of them when we can.
If you find this of any use, I am pleased.
I can also categorically say that Ann @Mrs5K has in my opinion given some excellent advice and if I had come here seeking to put my mind at rest, that (Ann’s advice) do that and so on that basis, I would look the tickets and pack the bags if not already done.
Have a lovely holiday and don’t forget to send us a postcard
Namaste|
