Thanks to all for your replies so far, partly just reassuring to know others feel the same, but tips re exercise and diet also useful. I do actually walk and play 5 aside football twice a week, and am not a smoker and teetotal for 15 years. the diet however, well that could be better I have to admit. My sympathy to anybody who struggles with this day to day-I have good days and bad but recently a few too many bad. But still determined to remain as positive as I can.