yeah I experience the same thing but for about two to three hours, partically in the morning when I take my meds. I take a medication called vyvanse. This med is basically for young kids but for me it works wonders. I always feel motivated and strong for myself after I take vyvanse. I actually feel like doing things! But after that 2-3 hours, im basically a bad mood zombie. In the morning, I have an enjoyable experience everyday, but its downhill from there. I get in a bad mood right before lunch, and it gets worst as the day goes along. But really, im not even sure what causes it. I know I have SAD but the real cause of my mood swing is either the meds wearing off, or just because I absolutely hate all my classes in the afternoon. I like all my classes in the morning because I like the people who I am surrounded by. Still, it doesn't make sense that I am always pissed during the afternoons when nothing has really amde me mad. So can anybody, who just read this, tell which is the cause for my bad additude afternoons? cause its really starting to concern me.