I had hypothyroidism and now i have hyperthyroidism. whatup?

Not unusual: Although the opposite is more common (i.E converting from hyperthyroidism to hypothyroidism). You may have been misdiagnosed with hypothyroidism as both tend to have positive antithyroid antibodies and the early phase of hyperthyroidism can manifest with only TSH being low. Regardless, you should seek an endocrine evaluation and perhaps even a thyroid scan to confirm your diagnosis. Good luck.

It can happen: Most people with autoimmune thyroid disease have either hypo or hyperthyroidism. Many people with hyperthyroidism may end-up with hypo as a consequence of treatment or spontaneously. The opposite is the least common variation, but it can happen. People with hypo may develop graves' disease, or "painless thyroiditis". Treatment is very different so an accurate diagnosis is critical.