Thyroid Issues

Here are my symptoms...tell me what you think:

My aunt suffers from it so it's always a possibility. I just turned 32 and started tallying up some of this stuff plus when I saw the Dr in August and we checked the no period thing she said we will wait three months more and then run the hormone tests to see. I decided to search online and they had a check list and out of the questions of symptoms I checked a good buit of them. Let me list them:

*Gained weight inappropriately or unable to lose weight (meanwhile I don't eat a lot and I am always on the go)
*Hair is droppng
*Dry skin
*Muscle aches, pains, stiffness
*Extremely irregular periods (never been 28 days but always had it) now it's been almost five months and nothing (no I am not pregnant. Had my tubes tied after my third child two years ago)
*Mood swings
*Extremely low sex drive
*Bumps on the back of my arms (caused by a build up of beta-carotene)
*Headaches
*Vaginal Dryness