Great hijack. I'm enjoying it. Apologies for any new readers interested in the recent changes to the Scottish electorate.
Feeding issues!! My DS was the same (slight but definite issues -fussy feeder while breastfed. Very content baby too. Also loves online gaming.
DS' teachers are supposed to check at the end of every lesson that he has his homework written down, but they don't and senior management (in other ways very supportive) think this is an unrealistic requirement - lack of time. DS would hate to be singled out for one-to-one with most of the teachers anyway. But the teachers often 'complain' to me that he's disorganised and not engaged. Which is annoying as they're the ones in the classroom with him. What am I supposed to do? Remind him in the mornings to pay attention? Fat lot of good that does. I'm very patient with his scatterbrain tendencies as I was like that too and can't concentrate on things that don't interest me either. I'm sure I too have ASD but didn't realise it till recently as I am interested in people, sociology, try to be considerate and kind etc. He wouldn't hurt a fly and doesn't do petty/office politics etc so I feel quite protective. In many ways he must be a very easy pupil to have.
DS is fairly inexpressive but not very noticeably different except for taking a long time to respond to questions. He's lanky so he has that kind of easy lope that fit guys have (he skateboards, cycles and plays a bit of badminton). I think he copes with anxiety by blocking things out - switching off, withdrawing into himself. So his difficulties aren't very noticeable. People who know him quite well are surprised that he has a diagnosis of special needs but he has no interest in people or in chit-chat, gossip etc. Like myself, I think he over-reacts - not in an obvious hyper-active hysterical sort-of way but by deeply thinking about things people say or something he's noticed or that's occurred to him while the conversation carries on, now unnoticed by him.... So he can't always keep up. And his brain just isn't wired for communication. He tells me nothing about his day or anyone else's news, preferring to talk about philosophical stuff or specific things he's interested in.
Tbh I suspect that the thought of having to choose a uni course is so daunting that he's burying his head in the sand. I think he sometimes transfers his general sense of the world being too tricky for him to navigate into anger at (sometimes very trivial) injustices. So he focuses on those instead of getting on with what he needs to do.
But he has good friends and I think he's happy - he loves playing and listening to music - he sings in the shower (it's so funny and lovely). I do worry about him though.
If your DS has sensory issues - noise, fluorescent lights, sensitivity to smells eg, he might get more benefit from a diagnosis (extra time in exams, in a small room, pen that records (uni lectures) that sort of thing. I don't really know though. Are you in Scotland?