I suffer back problems caused from a fall many years ago. If I stand, or sew to long I will be in pain, So when I rach that point I eat a couple of crackers (food in tummy) drink water, then take two extra strength excedrin, I can't aford Dr.s I then go sit in easy chair for about 10 15 min. and back pain goes away. So I can quilt awhile longer. I've had to do this since 1998, didn't always quilt. Just going shopping is a painful experience for me. Excedrin is only one that works for me. have tried many. No I do not work for them or have I ever.