Please Read all before comments because this isn't typical. I have been along time seasoned vet at diy. I lost interest in the hobby about a year ago when I got muted to flavors no matter what I did they would start strong and 4 days later I would taste little notes, even bold recipes would be reduced to minimal notes of sugar. I tried everything I could taste a new juice if i swapped for a few days. I quit and next thing you know I was back to smoking trying to stay away from that again. I just started back vaping literally 4 days ago and same exact symptom started up. Before you say it's too much sucrose or etm or percentages know this happens even with premium juices, increased or decreased percentages. I've never heard of permanent vaper's tongue any ideas?