They blame in on anxiety. Sometimes I get this burning sensation that runs through my head and I feel like someone is pushing my head down and I want to pass out. After the episode, I become very weak and tired. Is this part of having a chemical embalance of the brain/anxiety? I have had to hold onto grocery carts in the passed just to look normal and not make a spectical of myself. I become afraid of going anywhere because I am afraid it's going to happen again and I'll be alone. I take anxiety meds and they seem to work, after five years I have found the correct meds that work for me. Please advise.