Hiya,
My ds is 5 weeks and ff. We tried breastfeeding but for many reasons we had to give up. He was born 8 lb 6 oz and dropped a lot of weight when we tried to ebf so we had to give him formula to catch up. I don't know if that's what caused it but he's never satisfied! He's fed on demand anywhere from 60ml (2oz) to 180 ml (6 oz) depending on how long he slept for or how long it's been since he last fed. He must be around 10 lb 3 oz now. It's frustrating because he keeps feeding but doesn't sleep and it's a vicious circle really. He has reflux (he's on gaviscon) so we have to burp during feeding, after feeding, keep him upright and then when he's sleepy and about to doze off he gets hiccups (after every feeding) and he's wide awake again. I'm sure he's hungry as I always try everything else before I feed him (check if he's hot/cold, change nappy if needed, patting shushing, burping, rocking) but he acts like he's never fed before even if he just had a bottle 10 minutes ago. He finished an aptamil box in 4 days and he sleeps 8 hours on a good a day. I'm worried about him and obviously formula is expensive as well so if he's using it for comfort I'd like to change that.