typically can make you breathe differently. If you hyperventilate, you change
the acidity of the blood and then you get alarming sensations.

You have 3 children. That says to me that your body provided many nutrients for their development. Many moms can be low in essential fatty acids since
the brain robs the mother of these nutrients. So it would be a good idea to
take some flaxoil or fish oil to see if that improves things for you.

Also you have to look at what you put in your mouth. Candies? certain foods make it worse? Even your toothpaste may be irritating you. Many people cannot tolerate triclosan which is in many toothpaste formulas.

You don't mention what drugs you may be taking.... Birth control pills?
Do you have migraines? Some migraines have auras involving the face/eyes and mouth.

So there are many other things to consider.

The new TSH guidelines have a different scale to isolate hypothyroidism.
You are over the new scale guidelines. (which only go up to 3.0)
http://thyroid.about.com/cs/testsfor...a/newrange.htm

These are just some other things to consider.