ibromyalgia
"My right foot has been extremely painful for the last 10 years. I realized there were days when I limped quite a bit. Friends started telling me, even on days when I thought I was walking normally, "I didn't know you were limping". I blame my foot pain on playing racquetball for 20 years. Finally had to quit.  Recently I had a cold which is now just clearing up. I began taking 400 mg of Guaifenesin yesterday. I took one during the day and one at bedtime. This morning I stopped at the grocery. When I got out of the car I immediately noticed that the pain in my foot was gone. I remember saying to myself, as I walked into the grocery store, "what is this with my foot? It feels like it did over 10 years ago." I was able to run on it. Amazing!"