Hi so my evod was working fine, I had gotten a new coil and worked great, well I got a subox nano and put my evod aside for a while. I decided to take it out again to vape it some and now it's super hard to suck the vapor. I cleaned it and checked all the parts. Nothing that I could see wrong with it, new coil clean tank. When it's disconnected from the battery I can suck the air fine, but once I attach the battery it's super hard. Please help ! Thanks