just switched from 3 mg nicotine to 6 for the first time ( new e juice as well ) , got a couple a puffs between 10-20 things were normal at first , then i chanind for 2-3 puffs and went inside the house to rest, i got sudden shaking and bad nausea and my body started to get kinda hot for some reason , and bad nausea i had to lay down still have the affects right now but a bit easier, also just switched from the smok tfv8 tank to a falcon tank ( M1 coils 30% wood pulp 70 cotton ) at 40 watts