My 8 week old is having a difficult day - he got hungry on a trip out, fed when we got back but then had a bit of posseting which really upset him. He then settled and when he seemed hungry again I offered a boob and he latched on but then came off and screamed. After a while I stopped trying and he fell asleep on my shoulder. When he woke up he was immediately upset, did another sicky burp - I tried to feed him but got the same reaction. So now we're both in tears - Any ideas?!!