My atty was working perfectly and then just out of nowhere it was impossible to hit off of it. I can still get vapor, but it feels like there is no air flow. I tried blowing it out and it's impossible. There is too much resistance... no air comes out of the other end. I've tried dry burning it and I've tried using crest pro health.... Neither option worked at all. I'm at a loss. Is there anything I can do or is the atty a lost cause at this point? And does anyone know what would cause this? Its just so odd to me since one vape it was perfect and the next it was clogged up.