Thyroid issues?

Anyone on here have thyroid problems? (Hyperthyroidism, hypothyrodism...) I had a blood test done for the hyper, but levels were just above or below(can't remember) the normal level.  Everyone in my family has one of the other. Lately I have been extremely tired, headaches all the time and get very sick if I don't eat every few hours. This all happened before but has gotten 10x worse. It was a bout 8 months ago I had my blood drawn, should I go back again?