My friend got excited go somewhere.she was perfect before.suddenly that day fever, palpitations, tachycardia, pulsatile headache appeared. when she met doctor he gave amoxicillin for fever saying u r just anxious.no need to worry he told.again the head ache persisted she met one other doctor he gave citirizine.head ache was cured.fever also went off.i have a doubt that isn't that thyrotoxicosis?if yes should the medication continued through out life??