Eat high quality tuna if you need to eat tuna...SkipJack is said to have the Lowest Mercury content in it....it's from Wild Planet.

Consider working with Inositol for the tingling issue. I've been using Inositol for years. Another product for the tingling nerve issue is: Sphingolin. I used it some yrs ago with Inositol and now only use Inositol. I had a lot of nerve damage from hip replacement....

Do your research