Hi... with my PC pals.... I would highly recommend they run the full blood scan for various defiencies.... I never had any idea I was vitamin D dificient, until I noticed my fingernails not growing, my teeth enamel started deteriorating, being SUPER tired all the time (ie. having to take a nap at noon and going to bed... the latest by 8pm). I tought the tiredness was due to the crazy drama in my life.... but now happy, it was not all in my mind!!!! Hugs & I still have my issues... but they don't seem quite as bad