thanks cyclelops. i hope you get some kind of answer in two weeks. I was never at the level you were, but i was a runner for many years. I used to run to and from work over the bridge and through central park....8 miles each way. I miss that in tune feeling when you get into the rythym. I actually tried a number of times to run again being kind of stubborn but it was like trying to pick up and put down tree trunks. PN doesnt seem to discriminate too much between having been in good shape or not excluding of course a diabetes cause.