I'm really concerned because my TSH level is 4.01, but I haven't had any issues with my periods; they come every 30 days like clockwork, and I've had no other thyroid symptoms before. My doctor put me on Thyronorm 25mcg, and now I'm experiencing some worrying changes. My periods are delayed, and Im constantly feeling exhausted and down, almost like I'm a bit depressed all the time. Are these side effects from the medication? What should I do next?