Thyroid storm is a manifestation caused by excess thyroid hormones. Some of its symptoms are: weight loss, asthenia, anxiety, heat intolerance, palpitations, tremor, sweating, increased intestinal transit, dysnea, nervousness, among others.
Literally nothing... sorry! lol. you will definitely spot it at the other end in about 24 hours though! no worrys. i swallowed a lego once and i was fine!:)