I've been having a swollen neck and my throat kind of swollen too. I can't seem to hold anything down? What is wrong with ne?

Get evaluated. It could be many things including infection, a tumor, thyroid goiter/growth...If you cannot hold anythng down, it's time to see your doctor for an evaluation and appropriate treatment. Good luck.
Hard to know. Could be an infection. Anytime you have pain and difficulty "holding something down" the risk of dehydration and worsening illness is high. You need a medical evaluation right away.