I am also experiencing problems with s.  Legs hurting and now swelling very badly.  My dr took me off the pills, told me to (get this!) drink more water..no, not cokes, not tea, not coffee but pure 8 oz water at least 4 times a day.  I removed excess water and pain begain to lessen.  Who knew adding water would help rid body of excess water?  Dr says body thought it was drying up so it began to "hoard" water.  Sounds like a weird answer, but it's true.