Proteolytic Enzymes

After 26 years of tongue numbness post pineapple/kiwi consumption, I've finally learned what the cause is. Protease, but of course.

Apparently, my tongue was getting tenderized by something called bromelain in pineapples and actinidain in kiwis. The funny thing is, there is also something called papain in papayas and ficin in figs that does nothing to me. I still don't understand why I'm more sensitive to pineapples and kiwis than other people or why it's getting worse as I'm getting older.

Even in wine, I can smell pineapple from a mile away. I'm not sure if the enzyme also exists in some wine but the ones that smell like pineapple give me the same tongue prickly sensation as eating a pineapple.

Now I just to figure out why.