Suggest Treatment For Severe Arthritis And Pain In The Neck
Yes, an over active thyroid may be the cause of anxiety.
Sorry to learn about your bothersome symptoms.
Once you are diagnosed with a thyroid nodule you should check the thyroid hormones to rule out an over active thyroid.
If the nodule produces too much hormones than it may cause anxiety, palpitations, weight loss, sweating etc, symptoms that you propably has experienced 4 years ago.
A hormonal profile ( TSH, Ft4 and Ft3) should be the first to check.
If hyperthyroidism or over active thyroid is confirmed than you should restart the treatment with oral medications.
It will be a pleasure to answer further queries.