Some people feel no symptoms with TSH very high (20+) but others (like myself) feel miserable with a TSH that is "normal". When I was diagnosed, my TSH was 2.6--not statistically different thn your friend at 2.44, considering that TSH can vary up to 3 points in the course of 24 hours.
When diagnosed, My Free T4 was also "normal" though it was very low in the range. At that time, I have MANY of the classic hypo symptoms, and was practically disabled by the fatigue.
I am not a doctor, nor have I ever played one on TV...