My love you are spiralling even on this thread.
You say you're open to anything to be able to live a normal life.
Yet you have reasons you won't call the GP.
They will not take away your children, because you'll be asking for help and saying you want that help so you can be healthy and well for the children.
You don't even nearly reach the threshold for social workers to be concerned about you - at the moment.
So before you spiral further seek help and take whatever help is offered because this has gone too far for you and your husband to deal with without intervention.
You are doubling down and being defensive because you're scared and feel out of control. So make the call to your GP and be honest with them. Or if that feels too difficult write down your thoughts including the suicidal ones and email saying you need some urgent support.
I am having my therapy on Skype at the moment as well as calls with my GP to monitor my bipolar medication.
Please, make the call and this could be the first day of a new life and you will look back on it and be proud of yourself for making a change.