u had a panic attack- when u smoke over ur limit, psychologically u feel anxious and ur heart may start beating faster and I'm willing to bet since it was a new place and u were ALREADY paranoid about the moms coming down the stairs even before u got baked, that was ur problem. I always make it a point to be in a comfortable place surrounded by people I trust when I smoke weed. if anything at all is making u anxious right before u smoke, then that will travel over into the 'high' and become magnified, leaving u with a horrible feeling,paranoid, heart pounding, feeling strange and just not a good high- this is a weed enduced panic attack.- it just happens to some people just like how heavy drugs make certain people angry and violent and some not- my advice- only smoke with close friends and not in place where u will get in trouble if ur caught-- and eat something next time- cause all that does is make u feel sick to the tummy and lightheaded, maybe even dizzy cause weed dehydrates u which means u should also drink lots of water or other drink when smoking