Thanks for the query
Alteration in bowel habit, nausea
is very common after introduction of new feed in infancy. In fact when any infant comes with vomiting or altered bowel habit we first look for anything new which has been added to feeds. Beside this you have mentioned that there is some condensed material in milk, so discard it even you have slightest doubt. Then observe if stool's frequency and consistency is getting improved.
At nine months you can give her dalia, suji halwa, dal ka pani, khichadi, kheer, smashed potato, banana, soup and other home made food beside continuing breast feed in a frequent manner.
I hope this answers your query effectively.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.
Wishing you and your family good health.