Not getting better

The last few days have been very busy for me, which is good I suppose, usually I stay home by myself but I have another busy week ahead so I'm looking forward to the distractions. Anyway, I'm writing this because I need to vent. I feel like I'm always dying and I don't know how to shake this off. My mood isn't improving and I'm having such a hard time sleeping. I'll come home from work (I work the night shift) wide awake. It's an awful feeling. I just want to be happy again but it doesn't seem promising.