I recently purchased the Aspire Atlantis tank along with the sub ohm battery. After a week or two, it has started to crackle (this is normal, I know.) but along with the crackling, I can feel that crackling in my throat? And it's not producing enough vapor. By enough, I mean not as much as it used to produce. Has anybody else had this issue? It sucks because I feel like I've wasted 110 dollars. The guys at the vape shop in my area said it could be because the coil came loose but that is not the issue.