the doc told me that my thyroid hormone is a little higher than norm. free T3 was 3.83Pg/dl which is about 0.3 above the higher end of the norm. free T4 was 1.62 which is just 0.02 above the higher end of the norm. my TSH level was normal and it was 2.75UIU/ml. I am wondering what could cause slightly higher free T3 level and TSH still staying in the normal range. I have symptoms that could be associated with high thyroid hormone. My heart beat feel so fast after a little excersise and shortness of breath appear at the same time with fast heart beat. its hard to sleep sometimes when the symptom appears. This is very bothering me and I wonder if anyone have some idea what should I do to cure these and what could be the cause. Because my heart beat sometimes is very uncomfortable and it makes me anxicious. I really would like to be fine like before.