A.F.
Hi J.,
My daughter was diagnosed when she was 19 months and my son was diagnosed at age 6. Both of them had extreme thirst and very frequent urination.
My very active daughter would lay down in the middle of playing to take a rest.....it was a HUGE red flag that something was wrong. She was also very hungry all the time.
If you have any concerns, go directly to the doctor. They will do a blood draw and a urine test.