My DS went to see an Ocuppational Therapist last week. She said he has a mix of high and low muscle tone. He is 5 months and has a problem holding his head up and doesn't use his arms to support himself. She also told me he may never walk. They never said he can't so I believe my son will walk, it may not be when babies typically walk. Does anyone have experience with this? Any success stories? I have to get everything worked out so he can start PT very soon.