I went from hyper to normal in about a year and then from almost hyper to hypo in 6 months. I've never been on any thyroid medication either. Doctors have told me that in my case this is related to Hashimoto's. Do you have thyroid antibodies? Have you seen an endocrinologist?
Please post your thyroid related test results and reference ranges shown on the lab reports. Also, if tested for Vitamin D, B12 and ferritin, please post those, along with ranges.
What symptoms have you experienced when hypo and same question for hyper?
Just curious as to why you were never on medication after being diagnosed hypo?