I’m sorry you had this experience, it must’ve been awful for both of you. I’m glad you took him to the vet and got a check-up and some pain meds.
The most important thing now is to see to it that he eats and drinks and poops like he should. Stress can change the pH balance in the gut and cause GI trouble. If you’ve started him on vegs you can try and entice him to eat freshly rinsed wet leafy greens or herbs. Cilantro or mint is often appreciated. Fennel is traditionally used for stomach trouble. The best thing he can eat is lots of hay. Keep a close eye on his eating and pooping – if either of it stops and you can’t entice him to eat even a treat, you’ll need to contact your vet again within 12-24 hours.
The next few days he may be a bit reluctant to approach you, but that’s normal for a bunny. Don’t push it, don’t try to grab him or pet him but let him come to you. He will get over this, but it needs to be on his terms.
My bunny Yohio was a stray and I caught him in an allotment garden. He screamed like all hell was loose and when I put him in the outside run where he was to be quarantined, he was crazy with fright and darted off the netting like a yellow ricochet. That didn’t prevent him and I from becoming the best of friends. So they do get over even really scary experiences.
You should make sure he can’t get his head stuck between the cage-bars again though, f ex by putting netting around the cage on the outside. Chicken-wire would do since it’s not about stopping him from escaping.

Oh what a to do, like Bam said Bunnies get over things in time. just like we do, when Olly gets upset I just say. “Oh dear, its OK boy.” and leave him to sort what ever it is in his own way, yes rabbit screams are awful, we know they don’t scream for no reason, but I’m sure he is going to be OK in a few days.

My bunny Smokey used to give me the cold shoulder for a full day when I would go away for a night or two. Then she would get over it. The same thing when I had to give her flea medicine when we moved to a new house that had fleas. She HATED me for like 2 days straight. Then she went back to loving me again. I’m sure he will go back to loving you again once he gets the chip off his shoulder

A bunny scream makes one’s blood freeze, but that’s the whole point of it, evolutionary speaking. There’s a chance that a predator that’s caught the rabbit lets go.

I knew bunnies could cream sth terrible, so I was prepared for it when I caught Yohio, but it definitely isn’t a sound you ever want to hear.

The bunny cold shoulder is known as “the bunny butt”. (Flight animals like bunnies and horses and deer etc like to keep their backs to the “threat” so they can run away if they need to). He’ll give you the bunny butt for a couple of days now, but that’s normal bunny behavior and not worrisome. Treats are often the best way to get back in his favor.

No, Bunny butt doesn’t involve not eating. That he’s not eating is serious -it always is in a bunny. It can be the onset of GI stasis, a condition that can become life-threatening pretty quickly. Sometimes baby gas drops can help, and a very gentle tummy massage. Empty his litter-box and refill with fresh bedding so you can keep track of how much he poops and pees. And try to entice him with fragrant herbs or favorite greens or favorite treats. He must eat or he’ll need vet care. This refusal to eat is probably caused by the stressful event yesterday. It’s treatable esp if caught early, but must be taken seriously. 

This is a very good article on GI stasis: http://www.bio.miami.edu/hare/ileus.html

Skip the part about giving an edema, it’s not sth a lay-person should try to do at home. 

Yay, great news!!

Even him fighting his meds and then washing himself after is great in itself, a really ill bun won’t fight and won’t wash himself – but eating cilantro, hay and parsley is just super.

Pain often does manifest itself as loss of appetite. I didn’t even think of that, I thought it was the fright.

It’s good for a bunny parent to be aware of the possibility and the first signs of stasis even if it’s not sth we like to think about. It’s not like it’s with other pets where you can wait and see, they’re not like dogs that eat once they’re hungry enough. Being a bunny-parent is often quite stressful, I do agree. But also rewarding. There’s something so special about them, it feels like such a privilege to gain a bunny’s trust =)

Don’t be paranoid about stasis, just be vigilant. I always take action directly if one of my buns won’t take a treat. I give baby gas drops (simethicone), then a very gentle tummy massage (oddly even the most skittish bunny will often tolerate a a bit of tummy massage when it has tummy trouble), and if that hasn’t helped after 3-4 hours, I call my vet. You seem to have a very good vet. And you seem to be a very good bunny parent. Some things we can prevent if we are cautious and intuitive, but some things just aren’t in our hands.

I hope your little guy soon is pain-free and happy again.

Glad to hear he is doing better! Is he in your profile picture? If that’s him, he is gorgeous!!

He’s eager to eat and he gave you a kiss on the nose yesterday! That’s so great

Aww Bunny kisses, one of the best things in life, not many bunnies gives kisses, I was surprised when Olly kissed me, sometimes when I feed him, I say. “Ahem you forget.” He runs back to kiss me, sometimes he will put his face out as if to kiss me and when I go over he’ll be like. ‘What?’ Then I’ll say. “Where is my kiss?” Then he will hide in a box but put his face out to kiss me and run off into his cage and I say.”You going bed? I not had kiss.” Then the little face comes out and the rest of the body and sits in front of me and reaches up and gives me a big kiss, I had a problem with Olly once, I was watching a video and he heard the animal scream, he was not too happy with me, but after a few hours I said, “What we gonna do?” He stamped his foot, I asked again same thing, so I got in his pen and said. “Hey boy its OK, give Mummy a kiss.” He was OK, I’m glad your bunny is OK, he does love you, all bunnies love Mummy’s and Daddy’s and never fall out because they give bunnies treats.