I would eat it I buy fresh salmon myself but that one sounds fine, the only question I think would be -product of china- I presume it means cheaply prepared there, not the most reliable place for food prep. I don't think.
My daughter was just the same. She went vegetarian for at least a couple of years and she got sicker and sicker, same symptoms as you, acne, depression etc. went back to meat and doing really well now.