Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
No. Growth spurts cannot cause headaches
. The second cause that is orthodontic work can infact cause headaches. If the headache is persisting this long then it would be quite uncomfortable and let him take some painkillers like acetaminophen
. You should see the orthodontist to get the headache resolved.
Hope I am able to answer your concerns.
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Wish you good health,
Dr. Srikanth Reddy M.D.