I went to the dentist today to have some fillings which needed numbing. After the injections were given I suffered chest pains, palpitations and started shaking badly. I am not afraid of having treatment done so that is not the reason. The dentist put it down to the adrenalin in the anaesthetic as it had happened last time I went but not so severe. My thyroid medication has been changed lately as I am feeling tired, joint pain and erratic weight gain. I dont seem to handle 150mg levothyroxine for more than a year before I get ill and I was wondering if this is a way of proving adrenal fatigue with what happens when I go to the dentist. Or is it just me.