Bulldogs World

Hi , I am new to the BDW and absolutely find this place amazing and very informative. I rescued my first Bulldog about 8  years ago and absolutely fell in love with the breed. did a lot of research and wanted to add to my family and purchased a bulldog from a reputible breeder. Angel is her name and after she had her 3rd heat we had planned on breeding her. I wanted to get the experience and better her line as I did for sure, no doubt about it. I want to start showing in the near future. Angel had her C-Section on the 23rd of Aug. so the puppies are now 18 days old. this is my first litter and I have a few questions if anyone has any advice or knowledge would be greatly appreciated. My breeder has been wonderful but want to get other advice as well. Angel had 4 pups, 2 males, 2 females. We lost the runt of the litter 5 days after they were born. :( How heartbreaking that was. We tried everything and my vet told me that ususally when they are born that small ususally something is not developed and could have tried everything to save him and most likely would not have been able to. I did try everything and again was not able to save him. I now have 2 females and 1 male. the male was born with hernia which has closed up very nicely and does not seem to be a problem. they are all gaining weight and are still nursing off of mom which has been a wonderful mom. I am curious though because the male now does not seem to nurse as much like he used to. he was the biggest of the litter and still is but the last two days he just doesn't seem as interested. He will nurse for about 10 - 15 minutes, poo & pee and then try to walk, is so cute, looks drunk but then he goes and lays down and to sleep, I have been also supplementing them all with a syringe with UNI Milk as I don't think that mom is producing enough milk at times she seems not to have alot and then other times she does?  I tried the bottle and scared the daylights out of me when the first try the one choked, I said to myself I will stick with what I am doing and dropping the milk from a syringe on thier tongue and seems to work, no choking, or asperation, might take me a little longer but I feel safer doing it this way. he is still gaining weight but my concern is that he used to be the one that would nurse the most and the longest and here recently he is not, I guess he seems to be getting enough milk from mom because he has the little round belly when finished but he wants nothing to do with supplementing with the syringe anymore or not as hyper active to get on to mom like the two females. could he be teething or something and just not himself? The two females will both take about 15CC of the unimilk with syringe and then also nurse off of mom for 15 - 20 minutes, male is 2 lbs.5oz and females are just at 2lbs. Is this normal to not nurse as much all of the sudden? I did notice that he was constipated a few days ago so I gave the Karo syrup from my tip of finger but then he got diareah, today his poo seems fine, not runny but not formed either, doesn't sound conjested , just not really as active for that milk anymore. does anyone know what this could mean? When do they start getting their teeth? This is what I am thinking it might be. Maybe his little gums hurt because he is teething, not sure. Also I moved them to the whelping box today for a while but mom freaked because she couldn't see them or be next to them and started panting and panting, I think they are getting to big for the plastic bin thing I have them in and she lays right next to it all night and looks in on them, the whelping box , I am afrraid to let mom in their alone with them still as I think they are still too small and she might accidently lay on one. If anyone has any advice would be great. Sorry so long, I have scanned and read alot of postings on here but have found nothing for how my 18 day old male is acting?