My DD is four months old now and has gone from a really good routine feeder(formula) 4 hourly bottles of 180-220ml to 5 sometimes 6 hourly feeding of anything from 80-150ml each time. I've wasted so many bottles making them up on the four hourly mark thinking she's hungry but she shows no signs of hunger or wanting the bottles.When feeding, she'll take a few sucks then stop look around at everything and play with my hands or the bottle and it's very hard to get her back on again and drinking. I try to persevere and I can usually get to her have a few more sucks but she gets so distracted and ends up wiggling around and pushing the bottle away. She's waking up at 2-3am and again at 5-6am and both times drinks the whole 200 ml without fuss and in about 5 minutes or less then goes back to sleep.Up until about 2 weeks ago she was sleeping 7-8 hrs through and having regular bottles during the day.Now it's like she's completely out of routine and it's so frustrating because I'll make bottles up in between thinking that she's not had enough and she doesn't want a bar of them.I'm so worried she's not getting enough nutrients but she's been gaining an average of 300grams a week! Last week she only gained 100grams which is no wonder since she's not feeding near as much as she was. Help! What to do?? It seems way too long between feeds but anything under 5 hourly and she won't drink much of the bottle at all. Everything is in the mouth now and she's constantly chewing and munching on her clothing and hands and anything else she can get her hands on which I know is normal but I'm wondering if I should start to introduce solids??? I've tried feeding with dimmed lights,no noise and facing the wall even but she still seems distracted and wanting to look around and play.Is it a common 4 mth phase or is she ready for something more substantial than milk?? Is anyone else having the same fussy feeding issues??or can anyone lend a few tips or hints to get back on track with some sort of routine?I'm just so Wish she would go back to her awesome feed/play/sleep routine that was working a treat for so long!