Attempting to get my dd2 (5.5months) to swap from breast to bottle. She is extremely stubborn (if a 5month old is capable of this?) and screams and wriggles every time i offer the bottle. I have tried the tommee tippie bottle with the wide teat and the NUK teat which she seems to like better. She also starting on solids a few weeks ago which she likes but has since been suffering from constipation. I visited the GP when we reached 4 days without any poos and he gave her some laxitive which worked initially but she hasn't gone for 3 days again. Tried prune juice and extra water. I am now at my wits end with a baby that won't take milk from a bottle and won't poo. Please help.