It's not unusual for TSH to fluctuate, since there are a variety of things that affect it. Both of your TSH values indicate hypothyroidism, but what's more important are your Free T4 and Free T3 values. Please post those, along with the reference ranges from your lab report.
Are you, currently, taking a replacement thyroid hormone? If so, which medication, what dosage and how long have you been on it?
Have you been tested for Hashimoto's, which is the most common cause of hypothyroidism?
What, if any, symptoms do you have?
Its usually because some of your thyroid gland got burst due to autoimmune attack and due to that thyroid hormones stored inside got flooded and due to that TSH got reduced temporarily. Anyway your actual TSH value is the highest number and seeing a low TSH value you should not reduce the dose permanently instead you can reduce the dose for some days and get back to usual dose slowly. This is also why Hashimoto thyroiditis users sometime experience hyper symptoms.