I have almost all symptons you talk about. Panic attacks, head tension, dizziness, vertigos, heart racing, fullness in the ear like there is fluid, sinus congestion, thoughts about serious illnesses, fear of fainting, stomach and intestines cramps and gas, and so on and on and on. THIS IS ANXIETY DISORDER. I tried a lot of techniques to get rid of it: EFT, Acupressure, Meditation, Prayer, but here is the point: everything one could possibly do to fight this thing only keeps it. the secret is ALLOWING. I'm reading a very interesting book FOCUSING, by Ann Weiser Cornell, you find at Amazon. This is a new approach. I feel great relief in knowing I'm not alone.