Graves and Periods

[alleysun]

I was Diagnosed and Treated with radioactive Iodine for Graves Disease in the Fall of last year.  Since then I have been battling hair loss, weight gain, muscle cramps and extreme tiredness.  I recently in May went on the synthroid but haven't had much change except for the muscle cramps have reduced.  My question is though, how does taking synthroid effect your periods.  I started taking synthroid on May 2 and was suppose to have a period around the 19th of May but never did and here it is June 9th.  The strange thing is that periodically I feel like I am going to start, (symptoms that I usually get before I do) but I guess I just wish I knew if this was normal or not.

[alleysun]

So when I am underactive and just started medication and didn't have problems before with periods that is still normal...ok.

[I_LOST_MY_APPETITE]

Symptoms of overstimulation:
Abdominal cramps, anxiety, changes in appetite, change in menstrual periods, chest pain, diarrhea, emotional instability, fatigue, fever, flushing, hair loss, headache, heart attack or failure, heat intolerance, hyperactivity, increased heart rate, irregular heartbeat, irritability, muscle weakness, nausea, nervousness, palpitations, shortness of breath, sleeplessness, sweating, tremors, vomiting, weight loss