Just an idea.... introducing alittle teaspoon full of infant baby cereal my help with the waking up. I had to do that for Kendyll and she is sleeping through the night alot better. If you do the cereal thing....DO NOT make it thick. Make it on the watery side since babies are still learning to swallow. Also I have heard of parents adding cereal to the baby's last bottle before bed to tie them over.
It's just a thought. Good luck though
Another reminder to check with the Dr first. My DN with the 3 mo old wanted to do this and her dr said absolutly not. Introducing ceral too early can increase the chance of developing allergies later. Even keeping it very thin, untill babies have excelent head control (4+mo) choking and asperation are high risk. Starting food too early is also assoicated with obesity later in life, and an increase instead of a decrease in colic. Not a flame at all for the suggesstion as that is whatEVERYONE (except me) was telling her to do and that used to be the norm.
OP- Hope it is getting better~~~