i've tried vaping with ry4 , vanilla and apple ejuice , last time when i vape then i always accidetally breathe in or purposely breathe in doing " waterfall " , then even though the juice is very fragrant when you vape it , but when you breathe in through your nose got a very weird smell then make you sick dont feel like vaping anymore , any experiences and know whats causing this ? initially i though it was caused by mixing juices but apparently i used a new tank and it still produces the similar smell. 
