Mine too! Except, ive had him for about 3 months now. Considering you were worried after a few weeks...does this mean i should be concerned? He started last night with a white patch about the size of a quarter or maybe a nickel. I woke up this morning to find him with another white patch the size of a dime or penny on his other side. BTW, mine is an 11.5 month old male mt. Kenyan jacksons