bad moments

you know those days that start out great and then by the end of the day you are just like, "who the fuck was that person this morning??" I was so content. I was so happy. I was so on the road to feeling normal again. Well, now I feel awful. Not physically, just mentally and emotionally. I lash out at people who don;t deserve it AT ALL and I can;t concentrate to get any work done. I just hate feeling this way. I want to just feel like me. I don;t feel at all like me.