TSH is a poor indicator of thyroid status; you need to get Free T3 and Free T4 tested, as well. Those are the actual thyroid hormones and will give a much better picture of what's going on.
Yes, definitely get it rechecked - my TSH went from on the borderline to undetectable within the span of just three months, so you could easily have seen such a change . I have multinodular goiter also and probable Graves as well.
yes i would have it rechecked i was at the er back in september of last year an a ct reviled a goirder that had basicly crushed my trak they went in an removed it an now my tsh is sll over the place an keeps risein even with meds its nothing to play around with my hair begins to fall out moare an more the higher my tsh gets please take it easy an get it checked out