Answers: Stop using levothyroxine and get emergency medical help if you hold any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, orifice, tongue, or throat.
Call your doctor at once if you have any of these serious side effects: headache; sleep problems (insomnia); nervous or irritable idea; fever, hot flashes, sweating; changes within your menstrual periods; appetite changes or shipment changes.
If your thyroid gland according to its functional state needs it, nearby will be no side effects. It would be a substitution of what is lacking only. Decisive is the TSH within blood. If the diagnosis is not done properly, you will become nervous, restless, sleepless etc.