I have spoken to a doctor and will start taking SF722 in a few days. He said that you will feel worse before you feel better b/c the yeast has to get out. It's the die-off. If you're achy it's b/c it's in your muscles and coming out. He suggested taking a laxative a few days prior b/c I have been constipated (another lovely symptom of Candida). This way I should have fewer die-off symptoms. Otherwise the yeast goes back through your system b/c you're clogged. Ick. Don't stop treatment if you have die-off. Get it out. It's like stopping antibiotics when you feel better without finishing them. You'll get sick again.