DD1 would always feed 7 times in 24 hrs and they would try to get me to give her more but that's all she wanted so I just went with it!! And she was a big chubby baby anyway so no idea why they wanted me to feed her more! 5 does seem a bit low but maybe that's just her and their feeding often changes. Tomorrow she might have a growth spurt and be having double! lol.

As long as you are demand feeding and she's putting on weight and having lots of dirty nappies then I guess it's fine? How long does she usually go between feeds? You could try give a dream feed maybe?