I have a 21 year old female friend who has been having really bad headaches in one particular spot towards the back on the right side of her head. They have been going on for months now. The neurologist diagnosed her with occipital neuralgia. Her newest symptoms began a few weeks ago. Sometimes she feels like someone is sticking a knife from her shoulder thru her heart to her breast bone. She also feels like her heart is racing, she feels faint, and she has severe shortness of breath with chest pressure. She even has trouble going up a flight of stairs somedays. She called me at 2 in the morning last night and told me her chest hurt so bad she was scared to fall asleep because she thought she wouldn't wake up. She has also noticed a couple of times when her chest hurts her cheeks turn almost blue and then get bright red. She has had 2 MRI's of her head, 2 chest xrays, an echocardiogram, breathing treatments, and nothing has showed anything. The doctors all think it is anxiety. Do you have any ideas on what could be wrong with her? Any suggestions would help. Thank you, Brenna