For the past 4 days I have been feeling really off. At night it hits me worse. I feel my insides shaking, I go from hot and sweaty to chilled and shivering, my blood pressure rises to 163/111, my pulse runs at 97 to 99. I feel fuzzy in my vision not blurry just fuzzy...like I'm not awake all the way. I have small pains in my right foot, and feel itchy at times. I went to the dr. and they sent me to the ER. I had chest xrays, EKG, urine testing and everything came back clean. It happened again last night and I'm getting scared.