PMDD or PMS... I'm a little crazy. ☺️

Alexandria
I feel like I have pmdd. I've have all the symptoms and it is affecting me and the people around me. I'm emotional and tired a lot. I missed work last night because I was so tired. I cried at the gym 3 times. And I eat everything for about two days. And I gain about 10 pounds. It's getting annoying. 
Even my guy friend who I've been talking to doesn't understand what's happening. He just feels like I'm over emotional... He is afraid to be in a relationship with me because he doesn't like how I'm up and down. I've never explained this issue to him. But I should 
Help! Does anyone else feel this way?