My baby is 4 months old and up until he was 3 months has been fine with breastfeeding. He has been mostly breastfed since he was born, but he would often have just one bottle of supplementary formula after breast milk on his last feed, usually a max of 200 ml. His latch has always seemed to be good as I have never had any pain breastfeeding or cracked nipples. However, he has been getting increasingly fussy on the breast and just does not seem to want to feed anymore on the breast even though he is hungry. He will latch for a minute or 2 but then comes off the nipple and cries, relatches for a few seconds then cries again and does this for a further few minutes before refusing to latch again completely and just cries until i give him a bottle. He successfully breastfeeds first thing in the morning and is content, but as the day goes on he gets fussier and fussier. I was hoping that this was just a nursing strike, but i read these usually only last a few days, however this has been going on for last 5 weeks now. I am having to take him to extra weigh ins as he appears to be a little underweight, I am therefore feeling pressured to up his formula intake as I am worried about him not eating enough if i don't. He is now having 3 or 4 bottles of formula a day on top of the breastmilk that I can manage to get him to drink but i am worried about losing my supply and really wanted to breastfeed for at least the first 6 months. I am pumping every night at 1am and sometimes after feeds if i have time to try and maintain supply, saving the feeds to try and use instead of formula every now and then when I have gathered a good amount, but it is becoming increasing exhausting. I have tried advice such as trying different positions, keeping distractions to a minimum, burping frequently through the feed and more skin on skin but nothing seems to improve it. I am concerned that despite my efforts my supply will run too low and I will end up having to fully formula feed, maybe this is what my baby wants? Is it common for babies to choose bottle over breast? I am thinking my only other option is to pump constantly so he always drinks from a bottle, but am worried about the time consumption and that it still may not be enough anyway and will have to keep giving the extra formula. Has anyone been in a similar situation? Is there more I can do or is it possible this could still be a phase? Sorry for how long this post is!