Can you destroy your sour taste buds?

I bought a 50 pack of Warheads, those extremely sour hard candies. Over the past week I've had a few a day, and they were deliciously sour. (I made sure I wasn't eating enough to get a sore tongue from them). But, I popped one in my mouth today, and realized it was not sour at all. I didn't even get a little flinch from eating it. Did I destroy my sour taste buds, and will they ever come back?