Chiari in toddlers?

I have yet to be diagnosed but I’m pretty sure I have cm. I am also worried my 3 year old has it. Does anyone have toddlers with it? What are their symptoms? My 3 year old is 25 lb, very underweight. He has a hoarse voice that comes and goes. He is very irritable and cranky often. He has tummy problems for pain and constipation. He is always rubbing his ears. We have been to ENT specialists, gastroenterologists, and everything checks out fine. No celiac or nodules in throat. He was also a verrrrry fussy baby and I could barely get an ounce of milk in him. Are these signs of cm in babies or toddlers?