Thanks for valuable input Machka, and I hope you have a quick recovery. I went twice to Hawaii (from Norway) this last year and both times I had a bad time with my calves. Most people around seemed fine but on the long leg from LA to London I had to move around a lot because my lower legs were restless and swollen. (no alcohol on BA and I drank alot of other fluids). I also wonder if my cyclist legs are more prone to this problem and consider using pressure stockings for my next long flight.