What are the effects of having a blood sugar level of 250?

Normal energy and function

Hypoglycemia symptoms like shakiness

High blood sugar symptoms like increased thirst and frequent urination

No effect; this is a healthy level

A blood sugar level of 250 mg/dL is considered hyperglycemia (high blood sugar), especially

Normal blood sugar is 70–99 mg/dL

fasting, low is below 70 mg/dL,

high is above 126 mg/dL fasting or 200 mg/dL after meals.