I was put on levoxyl at 14 because i had thyroid cancer and had lost 90 percent of my thyroid.
I myself have not had any serious side effects from the medication. When I forget to take it I feel completely empty, slow and my mood is irritable. I strongly suggest those of you who are having these problem to adjust your dosage. I have a fantastic doctor with a lot of experience, and he himself has had thyroid cancer and knows firsthand.
Too much will make you sick and too little will cause weight gain or weight loss, energy loss and etc.; all direct results of thyroid issues, not levoxyl