HI, I have been using the Doterra Vitality Supplement pack now for a total of 4 months. I have really noticed a difference in my hair and nails and energy too. But for the last month now, my nails and hair still look good, but I'm very tired and drowsy after my lunch dosage and I haven't tried anything new from when I first started taking them. I just don't seem to have the energy that when I first started taking them. I really enjoy taking them, but I would like to know what's causing this now... :( Has anyone else had this problem or is it something else going on with me? I need some advice please! Thanks Faye