Don't have to stop or feel guilty. My girl only had formula in the first few days and she is totally fine now. My girl, just like yours, never wanted milk bottle but I need to work full time. My mom took care of her and every milk-feeding was like a battle. She used her tongue to pull away the teat and then fell sleep after struggling and got tired. When she woke up, she was hungry and cried. Then it was just like on and on and on. Every evening when I came home, she was just so excited as she saw the walking dairy cow there (me) and she could wait to get fed. To compensate the daytime loss, she cried every night for feeding as I would be there for her. She did not quit until she turned 18 months old. Then, I totally wean her on her 23rd month. No force, no tears and just naturally.
Yes, my daughter was in the 50/60th percentile in the first few months and then went down to 30th but she was happy, she was active and she was only sick one time. She ate so much after we started her with solid food. So, I believe that it is not because of you giving her breastmilk that make your daughter lose weight if she's eating good. Baby grows up and becomes more active. If she is healthy and happy, you don't have to worry. Some doctors would ask moms to stop breastfeeding when the babies turn 1 years old. Honestly speaking, babies will eat solid as the main sources of nutritions from there onwards, milk is just supplement. If she does not want dairy milk from cow, why we have to force her to stop unless you cannot produce enough for her. You know, baby see breastfeeding somehow another kind of comfort. My daughter enjoyed to bond with me for breastfeeding more than she really needed it in the 2nd half of her 2nd year. It's like a routine.
In my opinion, weaning at 2 years old is more preferred if baby and mom work out fine. 3 years of breastfeeding seem to be not necessary. Breastfeeding preschooler is kind of gross but I know someone does feed until her kids turned 5.
Some kids will totally stop drinking milk after the mom stop breastfeeding. So, you may not want to stop too early.
Keep up what you believe to be good for your daughter. Since baby can have normal dairy milk after 1 years old, I would suggest you to consider weaning no earlier than that.
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