Another tip I should have started off with, and I added it to the first post today, is that you have to drink a lot of water while chelating. It makes a huge difference in the way you feel. During those few times I felt the weird tingling, it was probably because those days I forgot to drink enough water. I will make sure I drink one liter of water during each 3 hour session. And when I get home I'll drink another couple of glasses before I go to bed.