My LO is 9 weeks old and only currently weighs 7llb 14 oz below the 0.4th centile . He was born at 39 weeks at 6llbs 6oz and dropped to 5llb 14 oz . He regained his birth weight within 2 weeks however since then we have had a lot of problems feeding. He is struggling with reflux and constipation and is medicated for these. He was breast fed but my production dropped so he is now bottle fed He has now been referred to paeds but i am so worried this is going to affect his development and i feel its my fault. Has anyone else had any problems with this ? Any advice and shared experiences would be very helpful. From a very worried first time mum .