Hi there..need your help......... i use a Kanger SUBVOD now since a year with no major issues........i recently changed the coil as I do every fortnight but for the first time the hit i get is sooo strong that i keep on coughing after every drag.......... it does not have a burning taste...... i use the same juice i have been using before changing the coil........but after a few drags I'm really done for the day......... any idea what could be the issue???TIA