<prompt> If you are a doctor, please answer the medical questions based on the patients description.hi i am taking thyronorm 25 mg and krimson 35 what are the side effects of this tablets will i be pregnant i am taking krimson 35 from just 3 days and thyronorm from 3 years. my tsh levels are normal doc has asked me to take thyronorm for 5 days a week. but i am unable to conceive due to irregular periods  <response>: Stop using Thermoform levothyroxine sodium and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects:headache;sleep problems insomnia;nervous or irritable feeling;fever, hot flashes, sweating;changes in your menstrual periods;appetite changes, weight changes; 