Do you think it has gone away?

So on Friday, I ate something that made my stomach sick, on Friday night I was gassy but on Saturday morning, I went to the bathroom(#2) & I went again when I got to my boyfriends (#2) again. So I though I was fine but my boyfriend and I went out to dinner to eat Korean bbq and after I had a headache (lack of sleep) that turned into a migraine and I felt like my eyes were hurting. When I got home I was having a migraine and my stomach started rumbling so I went to the bathroom and turns out I have the stomach flu, I threw up and went to the bathroom twice this happened within 2-5 am in the morning. So all day I’ve been feelings weak and tired but I haven’t gone to the restroom again? Do you think my stomach flu is going away? I feel way better than what I did last night I just feel very weak. I tried to go to the restroom but it just doesn’t come out. I’ve been drinking lots of water but I keep getting hungry too which I’ve ate 3 times today. Idk if my stomach is feeling better