Drumbeat, it is indeed interesting but I am disappointed to hear that Perth isn't helping as much as I would have hoped for. A few of my Australian friends also struggle here but are fine in Europe. For example, one of them cannot tolerate Australian wheat and nightshade plants and has joint problems as a result but when he is in Europe, Italy for example, he can eat everything and he is fine. Another has severe eczema even though she was born here but she has no problems outside of Australia.
Bristolman, I also sprained my ankle really badly 3 years ago and needed an operation 2 years ago. I have also noticed that even nowadays, it keeps on swelling but back in the UK, it didn't swell as much. Like you say, it must be the humidity (I live in Sydney). When you say "here", where is that?