Thanks, Mark. I'm reading more than posting these days, but I'm always grateful for your views. BarbC said I wonder if you know any severe ME patients, BarbC. This is also a very scary illness, and the worst thing is, for some the suffering only ends when they (sometimes with help) take their own lives because they cannot bear it any more, with no cure or end in sight. I am old enough to remember how polio affected society, and have one friend who survived, with withered legs. He went on to have a successful career and full health, apart from the damage to his legs. There are many people with ME who have been seriously ill for decades, with no hope of recovery.