Memory Loss, Racing Thoughts, Mood Swings

[jewels68]

I have been experiencing significant memory loss. My thoughts are racing all the time and have been having sever mood swings. One minute I will be happy, the next I can either be crying or yelling at someone. I feel like I am on a roller coaster. I am not sleeping that well and sometimes can't remember simple things like my coworkers names. Please Help.
MRI showed nothing wrong.