All I know is... some children and even adults... see "red" when they are in the midst of an upset.
And its not like a conscious tantrum... where they know what is going on.
My Husband's brother... when he was a kid, when he was mad/upset... he'd get in a real tizzy, like you describe. It goes beyond the typical normal tantrum. His brother, would literally be like not even in the "present"....but just so INTO his tantrum that he didn't even know what was around him or going on. It was like he was dis-connected. His Mom, would need to just pick him up, and put him in a cold shower to sorta "shock" him out of it. And, his brother would then come back around, to the "now."
But now as an adult, well his brother is not like this. And he's totally normal. A real nice guy genuinely. They don't know why he was like that as a child. He's not a monster or anything....but just when upset... it was like an uncontrolled domino effect and he'd just go off on this tangent... of 'seeing red' as my Hubby describes it. Sometimes his brother didn't even really believe how he got when in a tantrum/upset... so his Mom actually videoed him in the midst of one. It was like how the "Hulk" becomes hulk.
I don't know what to tell you... but that, well, my Hubby's brother was like that. Of course that was in an older generation, not currently, where maybe now they know just what the problem was/is.
Perhaps... he should not be in daycare right now and is not ready. A child this age, CANNOT do things at will completely yet... nor be expected to sit still for a long time...even 10 minutes is a lot for a mere 1 year old.
Or, is it possible that something at the Daycare is just inappropriate or not suiting him very well? You should investigate that possibility. He does not seem happy, or he is not ready for "structured" activity or "school." It can be too stressful for many kids, when they are not yet ready.
It could simply be, that he is so irked...by all the things at Daycare, and he can't explain it.
I certainly hope the Daycare providers are telling you what they do with your Son when he acts this way???
All the best, just some thoughts and random ideas,
Susan