Are my problems all symptoms of a thyroid problem?

Doctor had a blood test done today because irregular periods and fatigue. I also have acne that just started last few months, losing alot of hair, trouble losing weight, mouthful of canker sores, twitchy eye, blurry vision that comes and goes. Now I’m curious, is all this related? I’ve just been ignoring it, because everytime I go to a doctor for the canker sores they just say it’s stress.