I think it might be dry mouth because when your mouth is dry the ph balance in your mouth is thrown off and your saliva can become acidic try drinking more water or try some biotene or mouthwash
Got some mbv today hawk sauce for free freaking love it! Freckled lemonade mmmmmm so good Wintergreen needs to steep thug juice so far so good a little to much menthol got to many flavor shots I think also got a five pack of aspire dual coils