Did you have any aches before starting the treatment? I’ve suffered from pain in my hands/arms for years. I can’t tell if I’m sensitive to dairy or not, but I experienced fatigue, nerve and muscle pain, bloating and skin irritation after eating Greek yoghurt. I quit dairy, but now I’ve had an even stronger reaction to a combination of s. boulardii and a 30bn probiotic. I can only assume it’s die-off.