Night terrors or 18m regression?

[Shatteredmamma1]

I need help!!
DS slept through from 8 months, sporadically to start with then I went back to work at 10,5m so we did a bit of CC (I know, but it worked very quickly). Since then, although we still have intermittent very early starts, he has slept through (apart from teeth or illness)

Roll on 2weeks ago where about 50% of the nights since he has been Up. For. Hours. It is so difficult to settle him, and in fact DH or I don't appear much of a comfort to him- different from normal. His cry is different- piercing and awful. He has just popped another tooth, and has had a temp the last day or so, but this started before this. I have tried everything. Co- sleeping doesn't often work, although last night he was up on and off 10-4 and then we managed a couple of hours with h next to me. He likes to sleep squashed up to one side of his cot which is why I think being in a big open bed doesn't work.

Any ideas? Do I give it another week?? Or do I need to think about sleep training again? Please help, my work and marriage are suffering!!!
Thanks in advance

Anyone??

I am in same boat! I am afraid I have no pearls of wisdom ! We were up last week suing in the night and since a 5 night run of that was breaking me we vowed to turn on no lights when comforting and that stage has passed... She now wakes up like clockwork at 11:30 and generally needs cuddling and sometimes that is ending in co sleeping. Naps area battle too. We keep saying oh in a week if it's still rubbish let's get a sleep consultant but then we have a better night and don't do it! Plus I find sleep deprivation makes me indecisive

Thanks for replying cordial
Did it start last week for you? I've done some reading since I posted on the 18m sleep regression and the consensus is it can last 2-6weeks hoping we are at the shorter end of that?!

I also don't turn any lights on etc, he isn't really comforted by me being there, picking him up settles him but then after a while back in his cot he's upset again...I can handle a quick resettle but it's taking 3 hours most nights.
I have also considered a sleep consultant in desperation, do you have anyone in mind? It's the cost that's putting me off and the hope that it's nearly over???!!

We aren't having the nap battle- if anything he's sleeping too long but I don't want him to get into that habit and then sleep less at night. It's a minefield!