Is it normal for your adam's apple to not be centered? just noticed mines a bit to the left. why would this be?

Generally midline: Most of the time the adam's apple (a part of your voicebox) should be in the midline and not off to one side. I would get checked out to make sure there isn't something pushing the voicebox off to one side. It is possible yours is just a bit more prominent on one side but i think it's better safe than sorry.

Nothing unusual : The "off center" position of your adam's apple(thyroid cartilage) may not indicate any problem. Since you are experiencing fatigue, dizziness and headache , thyroid problems maybe present. In cases of thyroid gland enlargement (from various causes) a change in the position of the adam's apple can occur. In other words it is your symptoms that get my attention.