I know this is an old post but I'm wondering whether I am having a similar reaction.
I started using Ancient minerals spray a long while ago and stopped due to my skin reacting really badly and becoming very dry. I have tried using it again recently with only small amounts sprayed on my arms and later washed off. I noticed in the night that I woke up with heart palpitations and recall having this during the time I was using magnesium oil before.
I'm wondering whether it is actually the chloride which is causing the palpitations and possibly the skin reactions? Any thoughts?