Well, I do wish I could help you with personal experience -but I have no personal experience of puppy care at all.
There IS good information on websites online, and equally, there is a lot of mis-information out there! The internet, unfortunately, is a bit of a hotch-potch of useful and useless information. And anyone can open a website, and give advice, whether they are qualified or not, and whether they really know, or not....
Some websites are better than others. It really is an instinctive thing, and whether the organization has qualified vets giving advice or not, or whether the website or organization is reputable, or not. I would suggest posting your question on the "Ask A Vet" Expert Forum here. I know you would certainly get expert and good advice....but it may take a few days to get it. You can't wait that long, I know.
During holiday times it's difficult. But there must be an emergency number connected with your regular vet that you could ring? There will almost certainly be a vet on-call for out-of-hours or emergencies. I know this doesn't seem quite like an emergency, but a very young pup, as I said, is very vulnerable, and the slightest imbalance could threaten its life or well-being.
If there IS no facility like that at your vet's, then I would take the little one to E.R. vet (they must be available, even at holiday times)
The pooping is a problem. But what sounds more worrying is the choking and gagging.
ive been on 7 different websites that suggests thats what to do,,and my vet is closed for 4th of july weekend
Who gave you that advice? If it was the vet, and you know and trust that vet, then it will be safe to follow his/her advice.
The other problem (her gagging and coughing) needs a vet's advice too. And quickly, because a very young pup is highly vulnerable. It may all be nothing very serious, but you do need to speak to a vet about these things.