My hands and feet. I work as a cake Decorator for a grocery store - so my symptoms are constant. I am in and out of a freezer all day and standing in one spot. I have tried a fatigue mat - but I have tripped over it because my toes and feet are numb and burning. I have trigger finger from using the pipping bags to frost the cakes. I am lifting 5 gallon buckets of frosting, so my elbows are hurting. I did 10 cake orders yesterday and my hands look like softball gloves. I absolutely LOVE what I do - I help people celebrate with my creativity but the pain and fatigue is too much sometimes. I took a half hour long shower with my feet soaking in a foot tub while taking a shower. There's a Kodak moment for you. But it works.