After falling in love with RY4 with its burnt caramel flavor I am suddenly unable to experience ANY flavor from my liquid. Staarted out with 5ml. of hangsen 26mg RY4. Fell in love. Ordered 2 15ml. bottles. After 5 days, 1st bottle lost flavor. Opened the 2nd no flavor. Just received 30ml. of Dekang RY4 same result. Ugh!. Am I vaping too much? Constantly is how best to describe my habit. I've tried all different methods tank, mod, carts ,drip tips,... Nothing! Help Please.