Sexual anxiety after traumatic birth

Not sure if this should be posted here, but I feel more comfortable getting advice from y’all.

I don’t know what to do. After the birth of my son in March, I can’t be affectionate with my SO.

I don’t want to touch him, I don’t want him to touch me, and it’s starting to take a toll on our relationship. When he does hold my hand, my insides start to shake, I get itchy inside (if that makes sense) and I just want him to stop. I love him dearly, and I hate that I feel this way. He of course feels super rejected, and asks constantly if I still love him, still want to be with him, etc.

I can’t get past this barrier. Even now writing about it has made my chest tight. I used to be the woman who would grab his ass at every opportunity, kiss him a million times before I left for work, constantly wanted to be in contact with his skin. Hugging. Holding hands. Snuggling.

I’m at a loss. Our relationship is suffering and I don’t know what to do. Any advice or insights would be appreciated.