I really agree about the exercise, but when you sometimes have such 'dodgy heads' and feel washed out, it is really hard to find the motivation. No two days are ever the same for me and some days I could walk for miles, others, I can barely stand up without having to hold on to something as I feel like I am just going to fall over. I like swimming, but being overweight, I don't like going to crowded, public baths. I joined a hotel club a couple of years ago as the pool was so quiet, but because of these funny heads, I stopped going as I was fearful I may flake out in the pool and drown............. I hate this 'change' so much. The frustrating thing is that in the circle of people I know around a similar age, everyone seems to be getting on with it and never mentions any symptoms - that's what made me so grateful for finding this site. To know there are other people out there who are experiencing the same sort of thing - I am not going mad.