Concerns

Hi. I’m wondering whether anyone is experiencing the same or has some advice. My LO is 22 months old and he is very developmentally behind. I’ve reached out to my GP, HV etc but they keep telling me to wait things out but I’m so worried. He is under a consultant for glue ear and if it’s not improved then he will have grommet surgery which could be the cause of some of the concerns but I’ve gone down a google rabbit hole and everything points to autism. - only started walking confidently 2 weeks ago and rarely he tries to walk on his tip toes. - when he is running he flaps his arms up and down. This has only started the last few days. - seems interested in his hands. - shakes his head at times but seems more often the last few days. - constantly has to have an item in his mouth. - no words other than dada, mama and wow. No gestures. Will hand lead and does seem to have a good understanding. For example if I get his shoes he will put his foot up, if I say “go to dada” he will run to his dad. - not a big eater, will eat bland food. This doesn’t seem to be texture related, he just seems fussy. - loves stacking toys and doesn’t really want to play with anything else. Other than this he is a very happy boy, eye contact is great and he responds to his name when he wants to or not engrossed in another activity which is more interesting. Just a worried FTM who just wants the best for her LO!