Help :(

So I am soon to be married and on 10/25 my fiancée was arrested. He had a warrant for his arrest for a felony class 4(if you don’t know it’s for identity theft.) My body has started wanting to shut itself down. My depression and anxiety isn’t helping any matters either. I am going on day 3 of not eating anything really( I have only ate one meal a day), I haven’t been sleeping well and when I do sleep it’s full of nightmares and I am going on day 3 of waking up at 4am. I just need some advise on this :/