What is thyroid adenoma? will it cause weird stuff to happen to me?

Depends: Thyroid adenoma is a growth on your thyroid. 95% of these growth are benign (not cancerous) and if it's small (< 1 cm), it typically will not cause any problem. If you have a thyroid adenoma, you should get your thyroid blood test done to make sure the thyroid is still functioning normally. A biopsy can also be done to rule out cancer process in the growth.

Yes or no: An adenoma can be either functional or nonfunctional. If it is nonfunctional then it is unlikely to cause you any problems. An exception would be if it was extremely large. A functional adenoma could produce high levels of hormone and make you have hyperthyroidism with symptoms of sweats, diarrhea, palpitations, and tremor.