depressed?

So for no random reason I started balling my eyes out today. Then I started laughing. Then I started crying. And I stepped on a nail. I am feeling like everything's going wrong. We're broke. I don't have a job. I don't know if I'm capable of having a job, but not having one means I'm stuck in the house without any social interaction. I just want to get out of the house. So I cleaned the garage. Then I got a nail in my foot. Came back up, watched the family stone and just burst into tears. I don't understand. Maybe it's PMS, but I know I need to see Nick soon. Feeling very vulnerable.