Hi, my 13 year old niece has been having a very strange combination of symptoms over the last 3-4 months. They can t figure out what is wrong. She had an EEG and it came back abnormal with spikes....she is also having a racing heart (wore a halter monitor) where her heart rate gets up to 195 BPM. She then gets pressure in her head, lots of headaches, shakiness in arms and has had numbness in her hand.