DA. Do you have a key worker if these are ongoing mental health issues? I know your husband is your full time carer, but mental health issues themselves are complex and he will not be equipped to manage these episodes. Just stopping you from hurting yoyrself is not the same as managing your mental health as a professional would do. Please get an emergency appointment with your doctor so they can try to get you the help you need.
BB
PS calling Samaritans to talk when you feel desperate into night might be a good call, as they're trained to deal with this situation (unlike hubby) and are less likely to be so dismissive.