Hi!!!! I have tennis elbow from of all things using a knitting machine. I was a professional knitter for several years and knitting 40 yes 40 sweaters a week really took a tole on my arms. I don't hand quilt but along with carpal tunnel and arthritis I do machine quilt. When I get tired and start to hurt I stop for awhile--nothing stops me from sewing..there are others out there with the same problem--you are not alone. Karen Sue