I Am Prone to Dark Moods

Right at this moment I'm stuck in a dark place where I can't even force myself to smile. I've been sitting in the same spot for five hours and moved once. My friends are with me but I don't feel like being social. And I don't think they understand. Yesterday was Valentines Day. I forced my self to go out. I spent a lot of energy busying myself with errands and tedious task to keep my mind off of the fact that I'm alone. Now it's all catching up to me. Depressing thoughts are swarming my head, making making head ache from my hangover ten times worse. I want to cry but the tears refuse to form. So I sit eyes wide open as I stare at nothing for hours on end as my mind tells me how pathetic I am. I hope this passes soon before I do something stupid.