Signs of anemia in toddler


My daughter is 21 months I’m having serious problems with her all she wants to do is sleep and she refuses food She also refuses water and juice only when it come from her she will drink it but not as a normal 21 month baby would i take her to the doctor all his telling me is that her weight is good he hasn’t done blood test on her last time they tested her for anemia she was younger and supposedly everything came out fine till now that i may not be a doctor but i am her mom and i see something wrong with her so my question is as a first time now what can i do ??