Experienced the same thing moments ago. It only lasted for a minute so, I applied pressure to the area and it got better. Then upon release of said pressure, the pain factor was almost immediately magnified by three fold. I have a pretty healthy diet, very little fatty foods or processed sugars. I am a Smoker however, but I have never head of someone my age (24), suffering from high blood pressure. This is the first time I have experience this though, apart from heightened sensitivity to sound. To elaborate for about a minute yesterday I experience the rather uncomfortable sensation of what sounded like tremendously high pitch sounds. I was in a crowded room, so when I realized I was the only one that was experiencing them, I found this rather troubling. Does anyone know or heard of these two incidents being linked somehow?