I've been experimenting with glutathione for several months now. I am finding that I have 2 completely different reactions to glutathione. Sometimes I take it and I feel pain relief and a tingling feeling in my body and it helps me to sleep. Then during the upcoming hours I have more energy. There are other times I take glutathione and I get horrible pain from it in my legs and body, and probably brain inflammation that causes me to almost scream out loud, and this can last 3-4 hours even. Any theories as to what is going on?