a) - No
b) - Yes
c) - No
[member=195838]MelissaM[/member] You don't say anything about your set-up, or where you are, but those things are really irrelevant where the welfare of an animal is concerned. As the lamb's owner, whether you have just the one lamb, or a large flock, you are legally and morally responsible for that welfare, so you need to be certain that you know what you are doing before you keep animals, and where you can seek help quickly.
You might think some of our comments including this one are harsh, but, not deliberately I'm sure, you have caused this lamb agony by not acting promptly. Sheep are prey animals and as such they try to disguise their pain so they don't attract predators, so you may not have realised the awful pain your lamb was experiencing. With hindsight, you should have either taken him to the vet immediately, or if a vet was unavailable you should have shot him immediately. If you don't have a suitable gun yourself, other stock keepers in the area will almost certainly be able to help.
<<< Has anyone has a sheep stand after this length of time??? >>>
I think you will find that question is unanswerable, as no-one will have left an animal in that state for that length of time.
You are new to the forum, but please don't be put off by our responses. This is an excellent place to learn loads about animal care and welfare. Forum members care deeply about their animals, as I'm sure you do too, so we want to help where we possibly can.