The stuff you have gone through! Wow, I hope my digestion doesn't start that!! I had no problems taking the stuff but I stopped after 7 days.. The Rx. said take one 500 for 14 days.. But I could not walk.. The strangest thing is the pain is just as bad when off my  feet with them up.. I at least am walking some.. But this is so strange to me why did the FDA o.k. this when this could be a side effect.