Switched to vaping a week ago, have been using the budget UK ecigstore vape. Its been fine but today I got this problem where upon drawing the vape into my mouth before inhaling I'm getting this unusual suction or build up of air in the roof of my mouth, above my tongue making it difficult to inhale properly, its a little hard to describe and therefore I haven't had much luck searching for help and this hasn't been a problem until now. I haven't changed liquids/style and I've made sure its fully charged so little confused as to what's causing this. I apologise I can't explain properly I can try to clarify more but any ideas welcome!