The Internal Revenue Service has announced that tax season will open on Monday, January 23, 2017. The IRS will begin accepting electronic tax returns that day, with more than 153 million individual tax returns expected to be filed in 2017. Every year, taxpayers have questions about early filing. Many software companies and tax professionals will accept tax returns before opening day, January 23, 2017.
According to it's wikipedia article, the half life of levothyroxine is as little as 3 or as long as 10 days. But there's also the question of how long it takes the body to respond to changes in those levels. Personally I'd ask to have my levels checked again in a month or two.
Myth #2: Synthroid (synthetic thyroid or T4) works and is more effective than thyroid glandular. The truth: Synthroid is cardiotoxic, shrinks the thyroid gland, suppresses cellular respiration, suppresses the pituitary and rarely improves symptoms, except in very healthy people who can convert the T4 to T3.