I was thinking w/l was as you said but if her length is 75% and weight is close to 40-50% why would it combined be 20%?
When I looked on my chart yesterday it looked like she was between 9th and 25th centile for both weight and length (and like mine a bit higher for length than weight, not enough to make it unusual or a problem, like I said if there is 2 centile lines between then that would raise a question but just being one line difference is fine). I just used an on line checker now and it came out as between 25-50 for length and 10-25 for weight. This is just how mine was too (just above the 25th for length so between 25-50 and under that line for weight so making it between 9-25). I assume somewhere on your records you have worked out or they have written 75 and 40-50 which doesn't match up with either my chart or the one on line. Is it possible they have made an error in writing it down? A couple of times our health visitor marked his chart incorrectly, getting the age totally wrong so the chart looked skewed and I had to scribble it out and mark it in the correct place.
Both my husband and I are average height and weight
When I said we are small parents so my DS is small too, I didn't mean anything unusually small. We are very average, but average has a very wide range. I'm 5" 4 and weigh about 136lb (a big heavier than I'd like but still within a healthy BMI) so very normal. I was certainly not the shortest at school or amongst my 'very normal and average' friends.
The centile lines aren't a goal to aim for the 50th as the healthiest, they are just a comparison to see how LO is growing, if for example they are on the 90th centile at every weigh in they are fine, just on the larger end of average and normal (bigger build, taller and wider structure it doesn't mean they are over weight so long as weight and length are in proportion).
I also used to worry about DS not eating enough, he took roughly half the guidance amount of milk. When any baby takes less than guidance amounts I would always say to get it checked, but I know in our case all my worry was for nothing, he grew and is growing fine, he just ate to his fill and being smaller needed less.
I wouldn't try solids yet, it's advised to wait until 6 months and milk gives her more calories than solids, the risk of introducing solids early is she will be full on solids (on lower calories) and not have enough room for all the milk she needs, so it is the opposite of what you hope for. Milk should remain her primary food until 12 months.
If she is self settling at night then she is not hungry. If she is turning away from her bottle with a little left then she is full. I didn't know my LOs hunger cry until he had as illness at 10 months (hospitalised for 4 days) following which he ate like a new born, frequently and night feeds too. I was so used to him not having night feeds that initially it took me some time to work out why he was crying - hunger - ah! That's the hunger cry! I had finally heard it! There are many parents who do not distinguish the cries, especially if you've been on a routine like EASY because the milk is prepared and offered regularly and LO seldom has opportunity to cry for it, they know it's coming and know their needs are being met, so no reason to shout about it, yk?
I'm sure if she was hungry she would let you know. This is one (of the very many) reason why we always respond to our LOs cries or calls for attention. If we ignored their crying then there is a possibility of hunger or some other need not being attended to. This is certainly not the case with your Lo, if she was hungry she'd cry and cry and you would know.
BTW mine had silent reflux and started his meds around this age or a little older. He was very ready for solids and clearly let me know it. I tried to hold him off until 6 months but he screamed the place down every time he saw me eating even if he had just had his fill of milk. I swore I'd make him wait until 6 months but in the end caved at 5.5 months. he was a very willing solids eater, some are some aren't. Some really get into it later, and again the range is fine.
Have you moved to 4hr EASY yet? This could help with reducing her fussiness at the bottle. If she isn't quite hungry enough at 3hrs then the 4hr EASY could work well for her, 4 months is the right age to switch (go gradually, 15 mins per day). Mine actually couldn't go longer than 3hrs between E so we never switched I just worked feeds around naps as the S changed but the E remained. At 6 months he could go 4hrs between milk feeds because he had a small solids meal between.
hope this helps some. Obviously if you are worried it is always best to get her checked out.
