Am I going mad?

[foxfoof]

Two years ago I managed to separate from my husband after DV and endless lies and self pity, the last straw him hurting my children and myself in a rage.
I'm now happily in a relationship with someone I've known since my teens. I never knew what was right in front of me back then.
I recently found out my exh is now in a new relationship with someone new. Now that's not the problem the fact she has two young children plays on my mind though. It was horrendous witnessing my own children being hurt by this man . To be honest I want to forget that dark past. But recently all I've dreamt about is my ex and him hurting the children including my own. I'm struggling to let myself go to sleep incase I see these horrid images in my head.
My new partner has been amazing and lets me talk about my nightmares out loud so they are not running through my mind. But how do I not have these nightmares? I swear I'm going mad.

foxfoof, the nightmares will pass, I promise you. They are horrible while you are living through them and more common than you would think.

Counselling might help.

When I spoke to my partner and a really good friend they think that possibly is because my subconscious is feeling guilty for not warning this woman to what could possibly happen to her children. I do not want to get involved as it could cause trouble but I can see their point that if anything happens then I could have warned them.
Last night I managed a couple of hours sleep and I was so exhausted I was out like a light with a deep sleep but I can't keep staying up really late.

If you did warn her he would spin it as his ex being a psycho and she wouldn't believe you. If you have genuine reason to believe that her kids are in danger call ss.
In the meantime, try to look after yourself. Insomnia is hell and makes everything way worse. Please get to the doctor if you really can't sleep.

That was my very first thought. Especially as he's a talker, he could talk his way out of anything and everything.
Plus the fact that he might try and find me again even though I've moved.
My own children are my priority.
As selfish as that might sound.
I think your right but if I do report it wouldn't I become main suspect number one?
Thank you so much for your replies.
I have a doctors appointment next week so I can speak to him then if I'm still not sleeping properly