My old Aro was a terrible brat. When I opened the top, he would ambush and try to jump out. One time I saw him jumping so my hands were buried but I used my arms to block him, he actually bruised my arm from hitting it so hard. I posted the problem here and a few different people told me to slap him when he tried to get out. So first I thought that would be animal abuse, but after 2 slaps, he quit jumping when I was cleaning the tank.
As far as eating, all you can do is wait and see, you might try garlic, it's impossible to tell whats going on in his mind or body. I hope he's OK. Good luck.