I have been the same weight since age 15 ... 9 stone (126 pounds). I can neither lose weight nor put it on no matter what I eat (or don't eat).
It has always been a bone of contention with me .... all my friends started to turn chubby at 14 / 15 and then that puppy fat turned to muscle. I excercised just as hard as them and am still the skinny minny I was back then
I am not bragging at all.....In fact I have always hated the fact that I am not bigger....I would love to put a few stone on!
At least my skinny fingers don't have a problem with those baby keys
Best to all