1 yr old not drinking milk suddenly

My 1 yr old has suddenly stopped liking milk. We went to India recently for her first bday and she has been having feeding/eating issues since then.

In India she has lost weight. She did not eat from the start of trip .. and then in india because of lot of travelling, staying up late nights, heat, jet lag, people, she probably could not take all that.
In the beginning she was not drinking milk, eating anything or even water and highly constipated. Later in the trip, she had settled. Her appetite had returned and she was okay.
In India, because she was not eating solids well & dehydrated, I was trying to give her bottles = 6oz x 5times ~ 30 out of which was probably taking 24 - 28 oz.

Now she should be taking 4 times ~24 oz ( 20-24 oz) but she is not even completing 3 times ~not finishing 18 oz. With that, she gets constipated often inspite of taking water, yogurt. She does not eat sweeter stuff so giver her prunes, dates, milk with sugar, does not work to relieve her.

I swear her digestive system was so good and she was hardly constipated until we started our journey :-(((( Also she loved cow's milk before. I have been her from 6 months ( along with Formula) . I had stopped formula after 1 yr but now I have bought it back thinking its cow's milk taste .

I give her yogurt about 2 times.. I know yogurt is milk equivalent but its not like she takes 6 oz each time. She loves it, but because she was not taking milk, I reduced yogurt and infact solids, so she asks for more milk but no.... I am very much worried now.

Is it normal? I read milk needs online but what is your experience?

I am starting her daycare soon and I know this problem is going to continue...with change. Daycare caretakers are not going to try feeding her milk every 5 minutes If she does not feed on regular time..like I do.
One more thing, I have noticed, if we go outside, mall etc, she gets excited seeing people and won't eat.

 

Even in morning she wakes up with growling stomach but won't mouth bottle/milk in sipper. Just a month before, she used to finish morning bottle in a gulp.

She was very good eater before. She hardly disliked something...like sweets were not her thing.

 

We moms are always worried. I try to cheat her by giving milk in glass, or sippy cup. she takes first sip, then look inside and rejecting.

She does not eat cereals and sweeter stuff. so getting milk inside her through cereals will also not work :-(((.
Yougrt is okay but 3-4 times a day ...doh1

I read people giving milk shakes etc. Adding sugar did not work for my LO. Do any of you give bournivita or other kind of powder etc to kid at that age to add flavor?

I did not want my daughter to get addicted to these things. Like some people even 40+ can not drink their milk without bournvita. But I have no control it seems.