Thyroid

I feel like I might have a thyroid problem. It is hard to lose weight and yes I exercise and yes I eat less and still I am not seeing much movement on the scale. I have had the test in my regular yearly blood work but it has always come back within normal ranges. I have heard that the only way to determine for certain is a number of tests at various times in a month. In any case, I am frustrated. I find myself needing to recommit and restart a diet almost every day hence the name of this blog. Wish me luck.