not only does it happen when I quilt - and when I am at the computer - but as I have gotten older - despite a 35# weight loss - it contiues. Some of us just have old backs - mine started when I was 13 - I remember the day I took that slip and fall ! - Unfortunately with age comes not only experience - but also discomfort. not only do I change positions frequently and get up and walk - I purposely put my iron stuff on the other side of the room.. Also got those thick 'play mats' under where I stand and DH made my 'table' 40 inches high - so it limits my benidng - but when the day is over . . . I stop - and do hand work if the mood stikes me !
How about we call it Back EXPERIENCE !