i always have this whitish coating on my tongue now, worst at the back but continues down the centre area of my tongue, i scrap it off but cant get all of it off, kinda leaves this white/furry texture on my tongue which is always there. I have acid reflux and am taking 2 ppi's a day if that contributes to it i dont know. Its just so annoying, doesnt appear to smell or anything. Any ideas?