Every so often I get these weird mood feelings where I feel like I'm going crazy. It's a combination of extreme moodiness, I hate the word "emotional" but extremely upset, depressed and even suicidal. I am not normally this way, so it really scares me when I do feel like that. I absolutelly cannot calm down and cannot think rationally. These feelings generally last very long; 3-6 hours; depending on what measures I take to try to get rid of them (sleep or unprescribed medication which does not help but messes me up in another way; so to get my mind off it). Could this be related to a hormone imbalance or vitamin deficiencies? Please help!