High TSH, Normal ft3 and ft4

april 2011

TSH â?? 2.48mIU/L (0.5 - 4.70)
fT3 â?? 6.2pmol/L (3.5 - 6.5)
fT4 â?? 20pmol/L (10 â?? 23)

april 2012

TSH - 2.45 mIU/L (0.35 - 5.00)
fT3 - 5.4 pmol/L (2.6 - 5.7)
fT4 - 19 pmol/L(12 - 22)

any help interpreting these would be great. i dont understand why TSH is high when ft3 and ft4 are normal yet i still feel hypothyroid.