oh rinny hope the app comes through asap, did the antibiotics not work? you were having to put stuff in his milk and that seemed to be helping a bit? sorry to hear its got worse again :(
boris its good to hear you have a long, slim baby as well, merryn is in 6-9 for lenght but is 14lb 3oz, and still not taking much milk, we had a few days were for some feeds she would take 5oz and then yesterday and today we are back to 3-4oz a feed, but she still feeds at 6pm then goes to sleep and i wake and feed her at 11:30 and then she went through till 5:30 when tbh she didnt seem that hungry
and then back to sleep till 7am but she didnt want fed again till 9:45 and she took about 4oz, tho she has been sicky again today so no idea how much she actually kept down.
she seems happy tho and has gone off to sleep again at the moment, so 
re teething i think merryn is teething VERY dribbly and trying to chew on her hands, toys etc and like Astrid she is a nose nibbler as well 
we have had a few more giggles and laughs, apparently me sneezing is THE funniest thing in the world, as are raspberries blown on her belly :)
with swim nappies i would always put a disposable swim nappy underneath!! esp for breastfed babies! i have a packet of the huggies ones, but am yet to take her swimming, tbh the thought of us taking all 5 of them swimming......... doesnt bare thinking about, its not the swimming as such, thats fine its the getting everyone changed and organised etc!
oh and not trying MErryn on food yet, she is one of the younger ones i think as she didnt arrive til december, so only 13wks and with my history of allergies i shall be waiting as long as possible, sounds like lots of the babies are ready for food tho! have to say i dont envy you, and like hmmsleep, am too lazy to want to do weaning 