Gosh, very dismissive of ADHD here aren't we.
My son is very high energy but I'm wondering if your son is high energy despite high activity levels?
So my son also loves all day, however we exercise him like crazy, get up walls to and from school, does a sporting activity every day after school or gets taken to a park or forest for 2 hours. After dinner he walks our dog with one or both of us for an hour. He doesn't sleep until 11pm at the earliest and sleeps 6-8 hours a night.
If we don't provide this amount of exercise he can't concentrate or sleep.
If we do provide this level of activity and a very structured routine he's a happy, loving, very clever boy with a genius level IQ.
Lots of my friends boys are high energy, always on the go.... But even as toddlers we'd all be at a park and his friends would stop for a bit, sit down, drink, eat, start again and tire out. My son would continue to run in circles while they sat to eat, stopping for a bite at a time.
At 2 we'd go out first thing to spftplay or playgroup, come home for lunch, go back out to a park or outdoor play area, home for snack, walk to train station to meet my husband from work, walk home, then we'd go for our dog walk and he'd walk that too. Or he didn't sleep so we didn't sleep.
He's on a referral pathway for ADHD and also has a seizure disorder and other health background. The older he gets the more the not calming down in an age appropriate way becomes apparent.
He's not a stereotypical naughty kid with ADHD but that's because we manage him through exercise and parenting techniques, it's not an excuse for behaviour here, it's a potential pathway to ensuring he has help with his sleep so we as a family can function better and he can concentrate better.
If your son is this level of high energy speak to your health visitor. If he just runs around a lot and crashes at bedtime sleeping an ordinary amount I'd say you have an entirely average 4 yr old boy,maybe exercise him more if you're atruggling