So I have a slight problem here. After drinking my 2nd ripe Pu erh brew, I'm getting that sour, tangy, electrolyte taste/feeling from inner side of my lower lip and on tongue tip. This isn't the first time it happened. Some month ago I was sleep depriving and drinking some (again) ripe Pu erh and it was so intense that I thought the tea released high dose of vitamin C

After that whenever I ate anything it had a lower or greater sour taste (I throw my beef stake under suspicion that it had spoiled, which wasn't the case). Licking anything of metallic nature would result in same taste. I freaked out that day. After some 12h of sleep my taste buds were OK.

Can someone please confirm that this reaction can come by consuming Pu erh (maybe bad tea)? BTW, I had my 7hrs of sleep this time.