I went to the OBGYN for my annual physical last week and requested some routine lab work. I have not had my cholesterol checked and was curious to my levels. The doctor ordered an exec profile which included TSH, Cholesterol, Blood Count, Triglycerides, etc. I didnt expect anything to come of this blood work. Everything came back perfect, except for my TSH, which was 13.13 According to the nurse, the high normal is 4.5. I am 27 years old, weigh approx. 118 lbs. I am employed as a Radiologic Technologist. I do feel tired alot (come to think of it), but I just assumed it was due to getting up early and being so active at work all day. What could be the cause of this and what should I expect from here?