Okay, after I did some research I've calmed down a bit. :)
It seems that an elevated TSH really shows that Iodine absorption is occurring - in other words the sodium-iodide symporter is doing its job. The symporter is regulated by TSH. And so I should probably be happy my TSH has gone up.
Brownstein says TSH elevation usually lasts from 6-12 months. But I read where it can last for 18 months.
For my next doctor visit I will need to bring an explanatory sheet on sodium-iodide symporter and TSH. Although I will not agree to taking thyroid hormones I will agree to have my TSH and thyroid hormone levels checked every few months.