OP,
You probably are finding that you have developed low level anxiety through trying to manage his dislike of you, whilst trying to not react to how deliberately unkind he is to you.
You have two young children and obviously feel very caught.
You can help yourself by bullet proofing your contraception.
Do NOT have more children with him.
Increase you family and friend support IRL by telling them the truth.
This will help you feel less isolated and more supported.
You need support and you clearly need to vent.
The examples you give of his nastiness must make you feel both sad and lonely.
It must be awful to love someone who is so comfortable being deliberately unkind.
He has so much time and energy to be unkind and make life harder for you when you are doing your best with young children.
Posters are being frank because stories like yours are all over MN every day.
Lovely young women ground down by the deliberate nastiness of their husbands.
You can't leave now and don't want to.
That's ok.
What you can do is take control back from him by thinking how it would work.
Women's Aid are a great resource to talk to.
Do you work?
If not, can you plan to return to work.
Can you squirrel money away over the next few years so that you have a running away account that is there if you need it.
Can you read up about 'detaching emotionally' from him.
Again this will give him less power.
Quietly, without him ever knowing you can take back your power in this relationship.
This will benefit your anxiety hugely.
Women who live with men like your husband for many years, inevitably end up shadows of their former selves.
They end up walking on eggshells, nervey, often on low level antidepressants because the toll of suppressing their emotions for years is so damaging.
You are at sea at the moment as you try and suppress your emotions.
You need to harness your suppressed anger and disappointment and use it to take back control, quietly.
Wishing you well.