Palpitations and insomnia
take place if the dose of levothyroxine
is high.It may be early to say in your case,as you just wait and watch for few days more.
If the symptoms persist and are really troubling,then you may reduce the dose to 37.5 mcg daily.
Take this dose for 6 weeks and get repeat thyroid
function test done.
You may again adjust the dose according to the repeat test report.
Make sure that this is taken lifelong.