It depends on what you call "hight TSH".

Quoted: "a high TSH is indicative of hypothyroidism, while a low TSH can be indicative of hyperthyroidism." (from http://www.drlam.com/physician_suppo...hyroidism.cfm)

Here are some links that might help, but it is probably best to talk to a doctor if you have concerns.

http://www.altsupportthyroid.org/tsh.php
http://www.endocrineweb.com/thyroid.html
http://thyroid.about.com/od/thyroidb.../confusion.htm