I don't have fibromyalgia but I do have neck and shoulder problems. I've been going to a chiropractor for over a year to help the problem. It doesn't fix it but it makes the pain go away. But I've noticed since this happened, there are a lot of bags that just don't work for me any more. Phoebe was one of them. I LOVED Phoebe when the bag first came out. So much that I bought multiples because I just loved everything about the bag. Until I started carrying it for long periods of time. Then the pain started after just carrying it from the car into a store. That's when I had to re-home all of them. I still love the look of the bag but I just know that it won't work for me. What's strange is that all the bags I already own, I don't have a problem with. But I've had a really hard time buying new ones. I guess the straps are just thicker on my current ones. My Zoes are a lot heavier than Phoebe but the straps just kill it for me.