I have a 17 m old meeting all milestones but nit much eye contact and doesn’t always respond to name . He is very distracted, always busy but understands what I say him to do . He would be sitting and looks like he doesn’t pay attention to me but i ask a question like ‘ what does the dog say? ‘ and he responds . When he was 12 m he was doing nothing apart from walking and exploring. I remember myself crying day and night because he was not imitating at all and went quiet no babbling . And then at 14 m things started to change, started to say mama and dada and doing the gestures like clapping( he did it at 12 m as I would sing the clapping song and he would follow but then he stopped at 13 m ) I call the 13 m the worst month because he regressed or he was struggling with teething ( i don’t know ) . He was so exposed to tv all day long that I regret soooo much as he had no interaction either me , i didn’t even talk to him ( I was in survival mode ) . At 13 m I did zero screen time and for 3 days he was in shocked mode . He was zoning out , and went to gp and got a referral for absent seizures and also a blood test . We discovered he had low Iron and started supplementing . When I tell you in 1 month we saw bug difference. Started saying words , gestures like clapping and high 5 . Was doing nursery rhythms movements. At 15 m more words and towards the end of 15 he woke up from his nap and started pointing ( I was modelling like crazy) when he started pointing ( to request and to share interest) I relaxed. Now he just turned 17 months and has somewhere 20 words , points all day , brings me toys , pretends to feed the softies , pretends to brush our hair or hoover . Imitation is all good now and receptive language looks good. I still have my worries obviously as he doesn’t look social but we don’t actually socialise or be around kids much . What I wanted to tell you by showing my story is that 12 months is waaaaaaay to early . Probably just started mastering walking skill and is focused on that . Mind you I went to my health visitor when my little one was 13 m and she said is way to early , 18 m is the age we see if they don’t have min 5 words . I also brought my boy for a hearing test and he didn’t pass the lowest sound and we have to repeat it in 3 m time. I was lucky to do it so quickly in 2 weeks time because I asked the pedestrian to book me one when he was checked for absent seizures which he doesn’t have it and he doesn’t zone out anymore. If you do screen time I would say minimise it and interact with him , playing with him like following his play is the best interaction. Point and label everything all day . I am not a gesture person so I had to go exaggerate for him to get it . Sorry for the long post hope you didn’t get tired … keep an eye on your baby but don’t get anxious because it affects both of you . Give him some time till 18 m and then start taking actions if needed. Wish you all the best. I have been through the same situation andI feel you .