Well, I'm 18 and currently have Crohns which is under control with Remicade, but for the past month I've been experiencing tingling in my head, burning sensations, swaying sometimes when standing, and the sensation of muscle tightness in my upper chest, neck pain, and a internal vibration sensation and my fingers tremor when pointed. I also have this very weird sensation where it feels like cold water is in the back of my head and back. All these symptoms come and go and are usually worse at night. I really hope I don't have MS or some other VERY serious disease.