Some of the primary symptoms to look for in a Covid 19 infected person are fever, dizziness, breathlessness, headache, dry cough ( eventually result in phlegm) and in a few cases loss in smell and taste. A few cases have also reported diarrhoea and fatigue.
has the pediatrician advised nebulizer? what medicine are you giving in the nebulizer? if there any fever along with cough and cold? this is mostly because of season change and newborns are prone to upper respiratory born infections a lot.
what is her age? diabetes since when? please visit the doctor who diagnosed her diabetes and he/she will suggest you to get tests done for thyroid (TSH). fever must be because of sudden rise of TSH levels.