I second the Coffee grounds. Also keep in mind that your body is adjusting to not having hot, acrid smoke burn out the olfactory areas and is going to need to adjust to the new "normal". I've read it takes a few months to sort it all out and there will be periods of time where you can't taste your
juice, at least I've experienced that. During those times, I either vape unflavored or some nasty stuff that I bought online as an add-on item for free shipping so I don't waste my good juice. Give it time and it will works itself out.