Help interpreting number (Canada)

Jan 1, 2015 very bad symptoms of hyperthyroid

Jan 13, 2015:
thyroxine free = 13.1 pmol/L (8-18) - normal
T3 free = 5.94 pmol/L (3.5-5.7) - high
TSH=0.02 mIU/L (0.4-4.4) - low
(Can someone explain if TSH is low, why is thyroxine free normal??

Jan 19, 2015:
Started taking Tapazole 15 mg/day

Feb 11, 2015:
thyroxine free = 6.2 pmol/L (8-18) - low
T3 free = 4.62 pmol/L (3.5-5.7) - normal
TSH=2.95 mIU/L (0.4-4.4) - normal
(so it looks like Tapazole did something - return TSH and T3 to normal, but now thyroxine is low!)

Feb 16, 2015:
Reduced Tapazole dosage to 5 mg/day

March 9, 2015:
thyroxine free = 8.6 pmol/L (8-18) - normal but on low end
T3 free = 5.84 pmol/L (3.5-5.7) - high again
TSH=3.32 mIU/L (0.4-4.4) - normal
(So reducing Tapazole dosage not great since T3 is back up again

April 27, 2015:
thyroxine free = 10.6 pmol/L (8-18) - normal
T3 free = 4.84 pmol/L (3.5-5.7) - normal
TSH=1.95 mIU/L (0.4-4.4) - normal
(everything normal now)

Is there anything to be gleaned from these numbers?

Thanks for the reply. It's actually my wife. She stopped Tapazole in September 2015 and it looks like symptoms are returning. Will get another blood test very soon and probably end up with Thyroid irradiation therapy.