Thanks for posting your query.
This is a very common issue in toddlers.
Don't panic! Some kids just don't eat. Find something that she likes even if its something silly like Cheerios, whatever she will eat just give that to her all the time. Make sure you are giving her vitamins
you can give alfalfa
tonic to increase hunger.
If your child is suffering from gas problem
then you can give grive water.
If suffering from constipation
then get an appointment with your doctor and plan the treatment accordingly.
Hope I have answered your query.
Wishing you good health.