I just had a bad pain in the back of my head and it shot around to my throat and now my throat is tight. i can breathe, but it hurts to swallow. i hve not eaten anything unusual.

This : This is an unusual scenario. I am not quite sure what happened. Possibly you experienced referred pain. Regardless, if your symptoms are still present or you have pain, you need to see a doctor. You may be dealing with a pharyngitis (throat infection) or possible had an allergic reaction. I hope you are better.

Possibly muscle spas: It sounds like you had a muscle spasm that is causing constriction in your throat. Try eating a liquid diet for a few days and see if it just resolves on its own. If it continues you should see your doctor for a full evaluation.