I had a bad stomach bug for a few days last week, I was better by thurs but for the last couple of days I've been feeling quite anxious, had chest pain and today had neck pain and a slightly gravelly voice. I also feel tired and headachey. Is it likely that I'm still recovering, or could it be that the bug has trigger an attack on my thyroid? Or is it impossible to know?! I've got a blood test on weds as I'm still trying to get to grips with T3 only and I really don't want a skewed set of results due to a temporary situation. Am I right in thinking an attack would lower tsh and raise ft3?