Help! Baby refusing to feed

[JoneseyA]

Hi all
My 4.5mo son is refusing to feed during the day. He used to feed following a nap but now wont even do this. Currently he only feeds at approx 1830, 2300 and 0300 but is even starting to fuss at the 1830 feed to the point that he only has half a feed and then sleeps for a bit and wakes for a bit more.

He is otherwise healthy and developing well and doesn't look malnourished. However I had him weighed today and he had only gained 2oz per week for 3 weeks. I am taking him to a doc on Monday but wondered if anyone else has experienced this. He is EBF and wont take a bottle or sippy cup. I have started giving him a bit of baby rice but it isnt making much difference so far!

Thanks

Hi again, further to this he poos a lot and has plenty of wet nappies and a GP who saw him this week said he looked fine and providing he was putting on weight it was ok but obviously he isn't so am getting increasingly worried. He was born on 25th and is now on 2nd centile.