I currently have Headband, OG Kush, and Blueberry growing in my garden. They all went into flowering about a week and a half ago. At night (as seen with my green light), my Blueberries slightly curl and droop around the areas the buds are forming. Headband droops a little, and OG stays the same--with the leaves standing straight up. Is this drooping during dark hours just a normal thing plants do to devote more energy to bud production? Logic tells me yes, but I'm still concerned.