A few weeks ago I had almost identical symptoms and it ended up being that some food that I ate had MSG in it, which caused the symptoms. It seems that I have food sensitivity to MSG.
Late in the day, when I first felt the symptoms, after having eaten out (which I never do), my heart rate, which is around 69bpm jumped to 104bpm and my blood pressure went up to around 167/82, usually it is around 119/78. I rested and kept taking by temperature and blood pressure/pulse. I went to sleep that night that way, hoping that sleeping would make me feel better. I could not sleep much that night because I could feel and hear my heart beating fast.
The next morning I was still the same so I called my primary doctor and made an appointment. They did an EKG and it was fine, other than the fast heart rate. He suggested that I go to the ER to get a scan of my heart. Not having the money to pay for the ER, I went home. Later that day I began to feel better and by that evening I was back to normal. While I was in bed, I read anything that could tell me what it was, and that is when I found out that MSG can cause these symptoms. I put one and one together and voila! no more MSG for me
Post Edited (Healing98) : 6/20/2018 1:41:51 PM (GMT-6)