Newbies’ Nook

Hypoglycemia vs. Hyperglycemia: Knowing the Signs and How to Respond

Hey friend, another key part of managing diabetes is understanding your blood sugar highs and lows. Knowing what’s happening and what to do can save you from unnecessary stress and help you feel more in control.

What These Terms Mean

Think of it like a blood sugar see-saw: too low = wobbling one way, too high = wobbling the other. Your goal is smoother balance.

Hypoglycemia (Low)

Usually below 70 mg/dL, but it can vary per person.

Happens when your body uses up glucose too quickly, or if medication overshoots.

Hyperglycemia (High)

Usually above 180 mg/dL after meals, or higher than target.

Happens when there’s too much glucose in your blood, or your body can’t use insulin effectively.

Signs to Watch For

Everyone’s body can feel these differently. Pay attention to your personal cues — they’re your built-in warning system.

Low Symptoms

  • Shakiness or trembling
  • Sweating
  • Feeling lightheaded or dizzy
  • Irritability or sudden mood changes
  • Hunger that comes on fast
  • Rapid heartbeat

High Symptoms

  • Increased thirst and dry mouth
  • Frequent urination
  • Fatigue
  • Blurry vision
  • Headache
  • Feeling unusually hungry or weak

Simple, Beginner-Friendly Tips

  1. Check your blood sugar when unsure A quick finger prick or CGM reading tells you exactly what’s happening.
  2. Treat lows fast 15 grams of fast-acting carbs (like glucose tablets, juice, or regular soda). Recheck in 15 minutes. Repeat if needed.
  3. Manage highs carefully Drink water and consider light movement if safe. Follow your doctor’s guidance for medication adjustments.
  4. Keep a small “emergency kit” Glucose tablets, juice boxes, or candy in your bag, car, or desk to respond quickly if you feel shaky.
  5. Track patterns Noticing what causes highs and lows helps you plan meals, activity, and medication better.

A Quick Myth to Bust

“I’ll always feel when my sugar is too high or too low.”

Not true. Some people have “silent” highs or lows, especially as you adjust to diabetes. That’s why checking your blood sugar and tracking patterns is so important.

Next Steps

This week, try noting any symptoms you feel and your blood sugar readings when they happen. Seeing patterns helps you catch highs and lows earlier and respond more confidently.

Remember: everyone reacts differently. Combine your observations with your doctor’s advice — you’re building your own personal playbook for staying balanced.

Note: This guide is for educational purposes. Always consult with your healthcare provider before making changes to your diabetes management plan.