Does hashimoto's thyroiditis cause panic attacks ?

Very unlikely: Occasionally, hashimoto's can be associated with hyperthyroidism, called graves' disease, this can be associated with the typical symptoms of hyperthyroidism and can include anxiety and panic. This is particularly true in those with chronic stress and/or post traumatic stress where the adrenal glands may not be able to keep up with the combination of stress and hyperthyroidism.

Not to that extent: But the initial phase can be associated with mood swings and anxiety. With treatment and stability of thyroxine levels, you should expect gradual improvement (can take up to several months).

Typically not direct: Hashimoto's will have a brief high thyroid state before the patient becomes low thyroid; when this brief period of too much thyroid hormone happens, the patient may be more agitated.Also if the patient's thyroid medication is appropriate replaced, panic attacks would not be associated with the disease directly; however any one with a chronic disease is more prone to anxiety including panic attacks.

Hashimoto: Possible, if metabolism is raised by overactive thyroid.