I wrote earlier in the week that my daughter recently started taking CorvalenM and had a very positive experience. Within a couple of days of starting it she felt energetic, thought clearly and felt well overall. She couldn't believe her luck. She did expend more energy because of this but I don't think it could account for the relapse she experienced. I am wondering if the relapse could have occured because there were cells and systems in her body that worked that never had before? It leaves me wondering about whether it was right for her. My advice to anyone is to be careful to take it easy in the first days if you get a positive response.