Hi I've now been taking levo thyroxine for nearly 6 weeks and was hoping to get less heavy periods. Instead they tend to start a week earlier with spotting and I have a huge build up of stomach cramps. Then still really heavy & can't go out first 2 days. Maybe I need to wait until I've been on the medication a while longer or am I expecting too much. Definitely got more energy the rest of the time just not that week!