I have read the numerous responses to your question, and it's good to know that so many have taken the time to get back to you. I also, noticed that you posted the question/statement on July 10th and that you were going to get a CAT scan in 10 days if you did not improve. Have you had your scan? What were the results? How are you feeling now? We'd like to hear back from you? Additionally, concerning the responses ... it appears that the medical conditions of each person seem to vary to some degree. But to most of them I would advise 2 things: (1) symptoms like; jaw pain, dizziness, foggy/tight head feeling, tingling in the arms/legs, fatigue, etc; are ALL symptoms of a conditions called Fibromyalgia Syndrome. And because the brain is overloaded with symptoms that do not seem to relate and cannot explained or diagnosed by the physician, people panic and that leads to further complications of assumed mental disorder.. Now, I've read that many have gone to the ER or have had their physician perform and exam that did not reveal any BP issues. However, keep in mind that you know your experiencing the symptoms and also that blood pressure changes every second of every minute. So, if you have the symptoms right now and tonight you see a nurse or doctor, you're not going to get the same results. It's known that when insufficient blood flows to the brain, brain cells do not receive enough oxygen and nutrients, a person can feel lightheaded, dizzy, or even faint. For example, going from a sitting or lying position to a standing position often brings out symptoms of low blood pressure. Also, remember that some of you may have "high" blood pressue, but that does not mean that you are not experiencing "low" blood pressure symptoms due to your medical condition. With a rapid change in the blood pressure, you can have a symptom at say 10:36 am and if I check you blood pressure at 10:41 am I may find nothing wrong with you, when in fact you do have a medical condition that needs attention. Best wishes to all of you ...