Have you been diagnosed with Graves Disease or did you have a hyper phase of Hashimoto's? Graves Disease is always associated with hyperthyroidism and remains that way; Hashimoto's often starts out with hyperthyroidism that alternates with hypothyroidism or periods of normal, but, eventually, settles into permanent hypothyroidism that requires replacement thyroid medication...
What medication did you take, what dosage and why did you stop taking it?
We really can't tell you a lot until we know what disease you have...