12 week old DS is fed Aptamil in Dr Brown bottles 6 times a day and has been since birth. He was taking 6-7oz per feed. In the last week, this has dropped to 4-6oz and over last three days, each feed has become a battle - arching, crying, flailing, scrabbling with hands, drawing up legs but will finally take the bottle (up to an hour of trying on and off) and then chug most of it down. Bedtime, however, he will drink between 7-10oz! He also bears down during every feed and has alternated between constipation and poo-ing a lot over the last couple of days. Seems ok in himself though and sleeping fine. Was sleeping through the night - now is hit and miss. Once today, half way through his afternoon feed he stopped, went red and just screamed in pain, the poor little man :(. During feeds I can hear his tummy making noises and this coincides with his squirming.
This morning, at 7am he had zero interest in his bottle, despite not feeding since midnight. Am at wits end.
I got emergency appointment with doctor who checked ears, throat, temperature etc. and all is well. Of course, at the GP, he drank 5oz without a bother!
Does anyone know what this could be? Could reflux just present at 12 weeks (he seems ok being laid down etc. though)? Was he just a bit bunged up and now it's regulating itself? Could it be oral thrush (he has white coating on tongue - GP noticed but said he's probably nothing).
Any ideas welcome. Am trying not to get stressed about it but it's getting worrying...