Does your ds tend to be gassy? She might be easily sensitive to food. Are you introducing foods with a 4 day wait rule? In other words only introducing new foods once every 4 days max so you can see it's effects? There are definitely some foods that cause more gas in certain lo's than others (my ds and cauliflower for example!
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Bowel movements also vary by little ones. Too runny or too hard on a regular basis is definitely indicative of something but in between there is a big playing field that is normal.
Texture is not necessarily impt but the type of food is. For example bananas and oatmeal are binding foods that may help make poo more solid, while kiwis, prunes, apricots and peas have the opposite effect. Yoghurt can be a helpful food in keeping a little one's tummy in balance. We introduced at 7 mo which is recommended where I live but check with your ped.
I am not sure what specifically is affecting your lo but perhaps you can keep a little journal or log for a week or two where you track what she's eaten and what kind of affects it has on her tummy, mood, and poo. Then you can ave a better idea of what to serve in small doses or not at all. For example I did this with my ds and realized he was getting terrible diaper rash from tomatoes (still does) so I can only feed them to him in small amts. Every now and then I give him a little more to see if he is less sensitive, as food sensitivities usually go away as your lo gets older.
HTH!