I'm hypothyroid too, which is low thyroid levels. There are a lot of symptoms that go with thyroid problems and they're easily found on the internet. It's not hard to check and see if your levels are off. It's just a blood test. Then to get it under contol (if it's low) you just take a pill a day and have your levels checked occasionally. If your levels are high it's a different story and depends on what is causing the problem on how it's treated. The thyroid controls a lot of things in our bodies and if you suspect that you are having problems I strongly suggest that you go and talk to a doctor. The problems will not go away on their own and will only get worse. Good luck and if you have any questions don't hesitate to ask.
Here's a site that tells a little about high and low thyroid problems.
http://thyroid.about.com/cs/basics_s...a/symptoms.htm