<human>: My girlfriend and I have been together for six months now, and I am completely in love with her. She left to go to europe for a month, and I was eagerly anticipating her return. Once she got back, she ignored all my texts and calls, and changed her facebook status to "in a relationship " with another guy our age. 

I had absolutely no idea this was coming, we had spoken on skype every night and I didn't doubt for a second that we were in love. When she finally returned my calls, she said we were done forever and that she was with him now, and no longer has any feelings for me.

 Keep in mind she never hesitated to tell me she loved me, was a faithful partner, and anyone on the outside told us we were lucky to have such an amazing relationship. She has met and gets along great with my family and friends. I know we're young, but I honestly wanted to spend the rest of my life with her, start a family and everything. I truly believed she was the one.

When I saw that she changed her facebook I was completely taken aback and shocked. I immediately threw up, and have not been able to eat or drink anything for three days now because I keep vomiting (dry heaving as well because my stomach is empty). I can't stop shaking and I feel incredibly weak. I'm dehydrated and still in shock. My anxiety is through the roof. I have lost about seven pounds since Thursday. I am a complete wreck and everyday seems to hurt worse than the last. I have had to call in sick to work because I have no emotional or physical capacity to work. 

I'm about done, please give me advice on how to get my life back.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Amazing loving girlfriend of four months left me out of the blue for another guy, I've lost control of my mind and body and can't see  anyway that it will improve