Does this sound like night terrors?

[PseudoBadger]

20 month DS has woken the last 2 evenings about 2 hours after going to bed, screaming but not wanted to be comforted - he pushes us away, says no no no etc. I couldn't see if he was awake as the room was too dark! Tonight he eventually flopped onto my lap and was 'asleep' again very quickly.
The only thing that's changed is that he's not sleeping at all at the childminder's so is very tired by bed time.

Yes, my DS suffers from night terror and they sound very similar.
In his case overtiredness is often the trigger, as is overheating. He had them very often when still a baby, now he's 3 thry are less frequent. They are awful and can last up to an hour but he doesn't remember them in the morning.

Ah, I know I always have nightmares if I'm too hot! Perhaps he is suffering from terrors then poor thing :(

Yes, DS used to have night terrors about 1 hour after going to bed.

He eventually grew out of them, when he was about 7. They were horrid (he would be shaking and screaming ), but he didn't remember them in the morning, apart from the one time I woke him up. He talked about that dream a lot afterwards.

I just tried to make sure he wasn't too hot when he went to bed, as there wasn't much more I could do. It's horrible not being able to properly comfort your scared child.

It does. My DS would scream and thump the bed. He looked awake, eyes open, but I could tell he wasn't as he didn't know me. I found talking in a low comforting voice eventually calmed him down. It felt like forever as its quite frightening to watch but probably only lasted about 10 minutes. I cuddled him when he was back to himself. He was older then your wee one, about 5 I think when it started as we'd just moved house, but starting school and being overtired definitely a cause too.
His father has frequent episodes of sleepwalking, sleep shouting and I think he's got it from him.

Yes it does. They tend to get them worse when tired.
My DS had them up til recently (hes 7).
It's hard to tell if they r awake even if u had light on. Eyes r usually open and a little wild looking!

I still get night terrors (41yrs ) and often wake up saying/crying out 'no'. For me it's things hanging down that does it most (e.g. Big chandeliers) I had to take DS's bunny mobile off his co-sleeper crib as it was sending me off on one every other night.

I have to say my perfect wake up would be being cuddles - something which DH, all freaked out by my freaking out early does .