Hi, I had a sudden bout of nausea, dizziness, sharp pain behind my right ear. I vomited and now feel pressure behind my eyes like a hangover (but I haven't been drinking) I'm extremely tired and have been for the last few days. At one point my jaw up through my cheek started tingling, but went away when I rubbed the back of my head just behind my right ear. I have a lot of tension in my upper back.