My Otis seemed uncomfortable with ice packs (we used frozen peas wrapped in a towel), so I just stopped.  Tess was the same after her knee surgery.  I ended up letting them each be the guide.  Of course, I am not a vet - but not icing did not seem to hinder Otis' progress.

What a shock for you with your very young pup!  So sorry you and Ollie are facing this!

I did do some icing for the first few days - I had an ice gel pack from a meal delivery service that I kept in the fridge and then wrapped in a super thin microfiber towel to put on Pofi's incision.  It was not frozen, but very cold.  Softer than ice since it has a gel filling.  

Ollie might have been startled by the cold if it wasn't wrapped or it could be pressure/pain.

Big fan here of making sure pain is well managed - we were on three pain meds before and after surgery because Pofi's was a nerve sheath tumor and very painful.  He was on Tramadol 3  x daily, Rimadyl 2 x daily, and Gabapentin 3 x daily (plus an antibiotic).  I know this was a whirlwind for your, but do talk to your vet tomorrow if there is more indication of pain.  Arm yourself with the different pain relief options - those three meds operate differently.  Tramadol on the brain, Rimadyl on the inflammation and Gabapentin on the nerves.  

Best thoughts for Ollie - let us know how he gets on!

Sadie took about four days to do #2. I did give her a couple spoonfuls of plain canned pumpkin with her food, which is high in water and fiber, so can help move things along. (Check the ingredients on the can and make sure it's just pumpkin. You don't want to give them the kind with spices). 

Hoppy Poopy Dance for Oliver!  Sounds like you are on a good combination of meds, but perhaps talk to the vet about the screaming.   It may be that you need to adjust the dosage.   It also could be that a staple is poking him.   And, many members see a bit of a crash at days 3 - 5 once the hospital meds wear off.   I was famous for posting between 2:00 a.m. - 3:30 a.m. during Otis' recovery, because we were almost always up then.  (And in fact, a portion of my family now seems to expect breakfast at 3:00 a.m. - Otis is now the only one who stays in bed then!).

At times, Otis would yip when Tess walked by him, even though she did not touch him.   I think he might have been flinching and feeling pain. Most dogs really perk up when the staples come out (about day 10), and you are still very early in the recovery process.   Make sure that he is not doing too much activity - we did not start walking, other than short leashed potty breaks, until close to 1 month post-amp (although Oliver is much younger than Otis).   Have you got a harness?   I love the Ruffwear Webmaster Plus harness (see the gear blog for photos) - I think a rear legger can use it right away.   I know that some members have left the harness on both to help them assist the dog gently and to make the dog feel more secure.   Just an idea.   Obviously, would depend upon whether Oliver likes the harness.  

Some of the reaction you are seeing might also be the meds - Otis never had a problem, but some members have seen anxiety and other weird symptoms with tramadol.   Again, might want to touch base with the vet.  You will get to the end of this tunnel - just hang in there.   And you will be amazed at how well he does once the staples come out, and you are able to taper off the meds (but taper only with your vet's instruction!). 

I was also given a lot of leeway with the tramadol - for a while, I was splitting his three pill dosage into 1 + 2 an hour later to prevent a "crash" every 8 hours when the 3 pills given together wore off.   Keeping a log book is a great idea.   We did the same, and it is really helpful when you are sleep deprived, and especially if there are two of you giving meds.  While I am sure that the screaming is hard to handle, my guess is that it will wear off fairly soon.   (And staples can poke even though there is nothing visually wrong with them - he may just be tensing up his muscles under/near the incision).   And I gave up on trying to cut Otis' nails years ago - that is something that happens in the back of the vet office when we go in for our check-ups.   (And the oncologlist has even been kind enough to help with that too).   Just out of curiosity - what time does he eat dinner and do his bedtime pee?   You might also want to try to move dinner and pee back, so that he has a fuller tummy at bedtime.   Perhaps he will sleep more deeply?  Or give him a small snack before bedtime?  If you log it, you can experiment a bit with what works.