Our expert says:
Did the headache/off balance symptoms begin after washing with lice shampoo? It could be a side effect from the shampoo. Nits are clearly visible on the hair as white spots, ask your pharmacist to have a look. You may have a skin condition of the scalp causing the itching and hair loss, especially if you have "dandruff" and a red scalp.
Hair loss can also be caused by thyroid problems, low iron levels, stress or after a recent illness/pregnancy. I think you should talk to your doctor personally so that he can tell you what the next step would be. It sounds as if he wanted to do more testing if the initial tests were ok?
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