Saw my doctor this morning as a followup to some beginning thyroid problems. The right lobe is enlarged, but an ultrasound showed no nodules or problems. I asked him my levels and instead of numbers was told my TSH was in normal range (it has a tendency to bounce around from 1.25 to 4.75 in the past), my T4 was borderline abnormal and my uptake was abnormal. Right now I am on Levothyroxine 25 mcg. What does this mean? They drew blood again today for new levels.