Hi, I'm wondering if I possibly am having a relapse of hyperthyroidism. I've been very tired recently, very forgetful (noticed it while writing a math and biology test recently in the past two weeks) and have been really stressed lately. I haven't had the fast heart, short of breath, trembling, nausea, diarrhea etc. yet when I was first diagnosed. I'm currently on 5mg of methimazole and haven't had my medicine dose changed in almost 11 months I think. Think that I should go to my doctor to get it checked out? Thanks in advance.