@Flyingfish2019 – the first step to being a great spouse is making sure you take care of yourself. You can't be a loyal / supportive / strong partner to your DH if you're feeling low, scared and alone.
So you might choose to look at this as the best way to be a LOYAL spouse to your partner – asking the questions you need to ask in an anonymous, safe space on a helpline, and getting the support you need, in order to be the best version of yourself for him.
With the eating issues and the alcohol, you're getting informed, which is a very responsible and loving thing to do. The people on these helplines know all about mental health issues, and they've spoken to so many people that they know what's normal, what's not normal, and what to do about it.
From where you're sitting right now, all you can see is your own situation, and you don't have the answers to those questions, so of course you're worried. Calling a helpline is a way of you getting informed, so that again, you're well-taken care of yourself and in the best possible position to then take care of your DH.
Does that make sense?