Well it does certainly sound like a hypertyroid. Which would be because you are on to high of a dose of medication. If your thyroid level is normal panic attacks would also need to be a consideration. I would think this is the cause and why your doctor thinks this. With a normal level I too would consider a panic attack as the cause.
Have you seen a endocrinologist? If not I would do this. They would be best at treating this.
The symptoms of panic attack are very often the same as a hyperthyroid. This is why when a person has a panic attack they always have the tyroid checked to be sure it is not that.
It may be that you are having panic attacks. I would go to the endocrinologist and then the pyscriatrist. If you are having panic attacjs they can be well controlled with medications.
I hope this helps.Let me know if you have mrore questions.
Dan
