Rick , I'm not sure about this side effect. I would definitely mention it to them when you go in for treatment. Make sure you speak to the RO not just the tech.
Good luck

caregiver to spouse, 55 yrs, dx 9/09 SCC BOT, T2N0,nonsmoker, nondrinker, HPV 16+ ,Lt hemiglossectomy, lt modified radical neck dissection, lt tonsillectomy,PEG 11/08 removed 2/09, 30IMRT, CT neg 4/09, neg CT 10/09