how much formula and baby seems to only poo when given a little boiled water!?

[moop136]

I have a 6 week old daughter and I feed on demand with bottles. But I am really unsure as to how much she should be getting at this point?
She has between 120-150mls every 3 or so hours.
Also, she never seems to poo!! I have never left her longer than 3 days before I give her a very small amount if bouled water. This always seems to get her going in a couple of hours. She seems to spend a lot of time red and straining, but nothing comes of it! I dont want her to rely on water, just wish she would go normally!
As I am a first time mum I am such a worrier! She has always has a snotty nose, and we use the saline spray, but this doesnt work. She now has a little cough too, no fever though, should i keep going back to the gp?
Anyone else been through this? I sometimes feel that I am in this alone!

Sounds constipated.

Are you making the formula according to the instructions? Not heaping the scoops or adding water to powder thus adding less volume?

She is on the aptamil comfort milk, which unfortunately is thicker than others, so this probably isnt helping! She had terrible colic from 1 week, and we have tried everything! I feel like I am always at the GPs every week, and my health visitoronly works the end of the week.
I worry because while i was pregnant i had undiagnosed whooping cough. The docs have assured me that my little one will have antibodies, but everytime she coughs i feel sick!
Think I will ring the hv office or gp!

Yeah, always use level scoops and put the powder into the measured out water.

Well done. Try to offer water little and often rather than only when you think you need to. Talk to your gp or hv about it too