Not throbbing but part of my tongue has been burning, just late in the day. Interesting about the cooper!

I take a zinc supplement or eat more food with zinc and it helps clear the cooper and helps tame everything down and get rid of the metallic taste. It really doesn't take much sometimes just eating zinc rich foods makes all the difference.

I used to get metallic taste in my mouth from certain med, I’m very allergic to many meds, but I never had throbbing

I would say yes I have if I eat to much my throat will almost stop swallowing don't know it the tongue tho

High copper levels can become toxic for some people. If you drink water from copper pipes it can really build up. Yes, taking zinc will help bring the copper down. You really need to have your copper level tested to be sure though. We all need some copper, but if it gets high, bad things can happen.