Levothyroxine side effects?

What are some side effects from levothyroxine in children/teens?

• im taking levothyroxine, 175 mil. (my TSH is 495) and it was just fine then suddenly i started getting vicious abdominal pain. very very sharp pains in my stomach. ive been missing a lot of school due to getting sick very easily, gaining my weight back, and fatigue that's just unbearable. i stay home and just sleep for 9-11 hours. its just like it was before i was diagnosed with hypothyroidism. i don't get it, i have such a high dose and it should be helping, right? well im waiting for my blood test results to come back (i have to get at least one blood test a month) but it could be another week or two, so i just want maybe a suggestion of what may be causing this? oh by the way, im 12 years old (13 Jan. 20 2011) thank you in advance.

• Answer:

  Of course you have told your parents, and this must be difficult for all of you, espeically in missing school so often. Always consult your doctor or healthcare specialist for medical advice. When you are having severe fatigue and stomach cramps and weight gain, your family is rightly concerned and should seek medical advice. If you google Levothyroxine side effects it says : seek medical attention right away if any of these SEVERE side effects occur when using Levothyroxine Capsules: Severe allergic reactions (rash; hives; itching; difficulty breathing; flushing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); changes in appetite; changes in menstrual periods; chest pain; diarrhea; excessive sweating; fast or irregular heartbeat; fever; heat intolerance; joint pain; leg cramps; mental or mood changes (eg, anxiety, irritability, nervousness); muscle weakness; seizures; severe or persistent headache or fatigue; shortness of breath; stomach cramps; tremors; trouble sleeping; unusual weight gain or loss; vomiting; wheezing. Please do consult your doctor and not Yahoo Answers when you have a medical condition..