Re: Hookah Sicknesss
Those holland quicklights are some of the cheapest, shittyest, most chemical-laden craptastic coals on the market.
Above all else, replace them right away. You're probably getting a lot of CO and gods know what else... Switch to Coconara, *******, or something of the like. You're moassel will taste better too. And the coals will last a lot longer.
Aside from that, like the others said, slow down.