My grandson is 16 and has been diagnosed with ADHD for many years. He was having real problems at school so we made the decision for me to homeschool him. He has always been prone to make noises (as very young child would run for extended periods making car noises) that calmed down once he started school and was put on medication. We have taken him off his meds since homeschooling (he is now on honor roll and adapting great to ECOT) but I have noticed he has been using all these weird voices almost constantly (like Kermit the frog, a growling type voice and a high pitched squeaky voice are his top 3). Is this something typically seen with ADHD or are we seeing something else developing here?