Hi,
I just wanted to add some ideas about the tube. My son has had his for two years, since he was five years old. I don't have the experience with a little one but I can speak to life with a tube.
First, Owen's tube rarely leaks. We had to start with the PEG which is a seven inch tube hanging out of the stoma. That was by far the hardest time since I was so scared it would get yanked out. It never did get pulled out but I have also heard they can go straight to a MicKey or Mini (Cute names, huh?). The mickey/mini is flat against the skin. Owen's leaks gastric juices but only enough to make a ring around the stoma, not enough to get anything wet, it is not from formula leaking. In the beginning, we put chucks pads on his bed in case it leaked, but it never did!
For jammies, we use button down shirts. Now that we are used to it all, he just wears any shirt he wants and it it fine. With a smaller child, you might want to use the button idea. No sleeper jammies since you cannot thread the tube through if there isn't an opening!
The surgery itself took about an hour. But, things have changed since Owen had his. I won't lie, Owen was very angry about getting the tube and it came out loud and clear in the recovery room. He had to be re-sedated in recovery so he wouldn't pull it out. But, he was in the hospital for two days and when we came home, he got out of the car, went to the neighbors and climbed a tree. He was A-OK within minutes of getting home. Now, we change his Mini button every three months and while it is not his favorite thing, he is fine with it.
He can swim in pools and the ocean, lakes/rivers are not allowed. He can do karate. He plays on the slides and equipment at school as if he didn't have a tube at all. We have never had to replace a pulled out tube (well, once, his GI accidentally popped it out and luckily got it right back in!). It has been really easy overall.
The biggest benefit for us is that the struggle to get enough calories in him is totally gone. He gets two feedings during the day and one overnight to catch him up on what he isn't eating during the day. He went from severe malnutrition (less that 1%ile) to now in the 35%ile. He gained 14 pounds in two months and grew a lot. He has more energy and is happier because we aren't force feeding him anymore. In fact, I think he eats more now that the battle is over.
Please, feel free to PM me anytime if you have any questions. I have lots of tips and ideas if you are looking for more information. I was tormented by the decision back when he had to get it. I felt like I was mutilating my son. It could not have been further from the truth, it saved his life quite literally. I hope you see improvements in one way or another and if you go with the tube, I would love to help in any way I can. Good luck!