Suggest Remedy For Problem In Thyroid Gland

My md a month ago said due to a recent thyroid test TSH high she referred me to an ENDO. I went to him and i was asked alot of questions, than he checked my neck. That day i had an ultrasound and doc found two med sized nodules. So at that point he decided to get them biopsied. Recently the results came back Suspicious for Follicular neoplasm and Hurthle Cell type. Last year my md diagnosed me with hyperthyroid and my tsh was alittle elevated abit but t3 and t4 were normal. The endo dr recently said she put me on wrong med which was Metha mizole 2 times a day Now he thinks i am now Hypo, My tsh is real high. I have surgery in Aug to remove part my thyroid to see if cancer, he wanted out anyways so down road nodules would not cause Swallowing problems ect. I was told 20 to 30 percent chance of it being cancer Is that correct??