my babys temp jumps from 101.4 and goes down gradually till its back at 99.2. now i have heard that babys are still trying to figure out there bodys hes only 2 months. we have been to the er twice for this and every time he was normal by the time we get there. is it true about there bodys adjusting? and if no why does his temp keep rising so high then go back down the way it does?