So here is the deal. I have been vaping from a Mini Protank 2 for a while and loving it. I have been rebuilding the atomizers to 1.8 ohm with 3mm silica, and more recently with KGD cotton. vaping at 10 watts, over time I end up burning up the insulators. I figured it was time to step up to the next level. Today my MVP 20W arrived along with a new SubTank Mini. I have the new tank turned all the way down for air flow and I am vaping it with the 1.2 ohm coil at 14 watts. The flavor is GREAT, but the throat hit seems hard and now I am getting light headed with a head ache. Do I need to reduce my nic level for this new tank? I am currently at 18 mg. What nic level should I drop to?