To be fair, if your health was still good you would have stayed in Thailand despite the rest of your post citing corruption and inconveniences.
I don't actually disagree with you. I am starting to get knee problems which came out of nowhere and I am only 51. I can only imagine what hell Thailand will become once I need a serious medical treatment.
I have always said it.... you should come to Thailand when you are young. This place is not for old Western men,