It takes 4-6 weeks for the medication to reach full potential in your body, and it's not unusual for people to notice worsening symptoms, when starting on medication, as the body adjusts to it.
It is odd, however, that your are reacting so quickly, since the medication must build in your system. If those symptoms persist, you may be having a reaction to fillers/binders in the medication.
How will synthroid help you?