Luckily when I was starting out smoking hookahs I had a buddy who was a pro so he showed me all the in and outs of smokin/setting up a hookah. Anyways there has been a few times however when I have felt sick, and more lightheaded than usual. However I know not to pull while coals are lighting, and the hookah has been used for a few years, cleaned every few weeks or so. Is there anything that could be causing me to feel like that...or maybe It was some other symptom from that day like I was sick, really tired or was really starving hah. Thanks for any imput.