It's really hot weather in my part of the UK at the moment. I've been trying to go for a walk every day. By the time I finish my walk my feet are swollen, so bad that my sandals don't fit and I have blisters this morning. My joints are so sore especially so when I woke up this morning. I walk like I've got arthritus, the last time I walked like this I had just done a 20 mile walk. Anyone else experienced this?