thank you for all the helps everyone. Here's an update on my current blood work, just got the result today.

We did a comprehensive metabolic panel. We tested for thyroid, liver, pancrea, kidney, morning fasting cortisol, and heavy metal test. Everythig is normal except for my blood mercury is at 13, maximum limit is 10mcg/L. The doctor asked me if I have consumed any seafood before the test, I honestly don't remember. Does that mercury number means anything? I know you guys say blood tests are not accurate to test for mercury but what do you guys think? Thanks in advance.