To be honest I’m just giving u an idea how it was for me and with people I know, your husband could be different. Your right he could just have a little bit and go sleep. But it wouldn’t be straight away.
Loss of appetite is a major sign as well. When u are using you can’t eat anything.
I don’t blame you my gf is the same still thinking I’m trying to use. And I don’t blame you. It will take time.
Just try an focus on your son for now, don’t mean to be rude but he’s more important at this time. And with being 8 they sence things.