Extreme lows of hypo mania

For those of you who do not know, when I have a mania it lasts for about a week. Then I cycle to my depressive state, I have way more lows than highs, well this low has been going on for about a month and a half. Every hour I seem to get lower and lower. I am to the point now that I do not feel safe around myself. I'm afraid of my subconscious state. When I'm awake I have suicidal thoughts but I know I can reason with myself that it isn't an acceptable option. When I'm about to fall asleep or alone the thoughts are worse and more convincing. I don't talk about how I'm feeling or what I'm thinking when I'm half asleep. The thoughts seem to take over and any part of my sensibility is gone. That's what I'm afraid of. My physical pain is constant but seems to be worse as the day goes on. Since it gets harder to manage later in the day it also adds to my suicidal thoughts.