Having read through your thread here, I'm wondering if your LO has a touch of reflux or Milk Protein Intolerance (= MPI) as well.
Refluxers often eat more at night when they are sleepy as they don't notice the pain. Consequently they end up taking most of their calories at night, and their parents get little or no sleep.
IF that is the case, then you may be able to try some things that don't require a doctors input. Have a read of
the
http://babywhispererforums.com/index.php?topic=654.0 thread and see if there is anything there that you can try.
Actually I have never spoken to the docs about it, as just not convinced he has it, but yes maybe he does.
How will the docs know? How can they tell?
Most doctors diagnose reflux in adults and children by a description of symptoms. There are some tests that can be done, but they are usually used to determine the severity of the reflux or to rule out other illnesses that mimic reflux.
The small volumes often and night eating can be a symptom of reflux.
They can also be a symptom of MPI. This is like an allergic reaction of the gut to the protein in milk. In some LO's it causes inflammation of their bowel & gives blood (in some only microscopic amounts) in the poop. In some LO's it causes inflammation of their oesophagus and they act alot like reflux babies with food aversion/refusal. Just like refluxers MPI babies eat small volumes and more when they are sleepy.
If you have moved to pretty much all bottles then you could try changing to a hypoallergenic formula. Some mothers can only get these formulas by prescription. Depends on where you live in the world.
If you are going to continue to BF, then you will need to cut ALL dairy out of your diet to be able to do a true test to see if he is MPI.
Hopefully there is some useful info in this. Please ask if you want more info. (((Hugs))) and hope you get some sleep soon.