also, your TSH being at 2.2 is perfectly normal and is actually quite good, so i disagree with other posters that this is of any concern. the only time it should be of any concern to you is if your level is at the very high end of the range, such as above 4.0, and a doctor will only be concerned with levels at the very high end of the range or above the range. doctors often see people with numbers well above the range, anywhere from 5.0 up to 11.0 and on.