hi..i'm very new to vaping (been vaping fr 3 weeks) currently i'm using apollo's xtreme kit and e-liquid (blueberry kona coffee, almond joyee and banana cream). i tend to vape quite a lot since i used to smoke 1-2 packs a day. in the first few days i really enjoyed vaping. but ever since 2-3 days ago i started to get an oily sensation in my mouth and throat. can someone enlighten me on this? i just ordered a halo triton and their eliquid. i'm hoping this new kit could solve this issue i'm having. can this problem be solved by switching brands?or this is just a sensation that comes naturally with vaping?