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My child is shaky, sweaty and not making sense - could this be low blood sugar?

Emergency numbers: 108 ambulance · 112 national emergency · Poison centre (AIIMS, 24x7): 1800-116-117

Quick answer: If your child has diabetes and is irritable, shaky, sweaty, pale, hungry, confused or drowsy, treat it as low blood sugar immediately: give fast sugar - juice, glucose gel, or sugar water - and recheck in 15 minutes. The AAP's rule when you cannot tell high from low sugar: give sugar. If your child is unconscious, having a seizure, or cannot swallow safely, do not give anything by mouth - call 108 and use glucagon if it has been prescribed.

🟢 GREEN - Mild low sugar you can treat at home (child with diabetes)

  • Your child is fully awake and can swallow, with early signs: irritability, hunger, trembling, sweating, paleness.
  • Give fast sugar - about half a cup of juice, glucose gel or tablets per your diabetes plan - wait 15 minutes, recheck, and repeat if still low.
  • Follow with a snack (biscuits, fruit, milk) once the level is back up, and note the episode in your diary.

🟡 YELLOW - Call your diabetes team today if

  • Lows are happening repeatedly, or at the same time of day - the insulin plan likely needs adjusting.
  • Low sugar followed a missed meal, extra play or exercise, or a hot day - your team will help you plan around these triggers.
  • Your child is ill, eating poorly, or vomiting - sick days change sugar in both directions and your team has a plan for them; use it.
  • Ketones are present when you check during illness.

🔴 RED - Call 108 NOW if

  • Your child is unconscious, unresponsive, or having a seizure - give nothing by mouth. Use the prescribed glucagon injection if you have it, turn your child on their side, and call 108.
  • Your child is too drowsy or confused to swallow safely.
  • Severe symptoms are not improving despite sugar given correctly.
  • Signs of a diabetic emergency (DKA): nausea, vomiting, belly pain, rapid breathing, a fruity or nail-polish-remover smell on the breath, and drowsiness - this is hospital-now, with or without a known diabetes diagnosis.

🆘 SOS - What to do right now

  • If awake and can swallow: give fast sugar now - juice, glucose gel, sugar dissolved in water, or gummy candy. Simple sugars work fastest.
  • Recheck the sugar in 15 minutes and repeat the sugar if still low. When it normalizes, give a longer-acting snack.
  • If unconscious or convulsing: nothing by mouth, recovery position (on the side), glucagon if prescribed, call 108.
  • Keep the diabetes kit, glucagon, and the team's emergency number in one known place - and tell grandparents and school staff where.

❌ DO NOT

  • Do not give insulin to a child who is low or who has not eaten - match insulin to food actually eaten, per your plan.
  • Do not give food or drink to a child who cannot swallow safely - choking on juice is its own emergency.
  • Do not send a low child off to lie down alone - stay until they are clearly recovering.
  • Do not skip the 15-minute recheck - sugar that drops again silently is how mild lows become severe ones.
  • Do not wait out vomiting with high sugars and ketones during an illness - that combination is how DKA begins.

What is happening and why

The brain runs almost entirely on sugar, so it announces a shortage fast and in a characteristic order: first the body's alarm (shaking, sweating, hunger, pounding heart), then the brain's own complaint (irritability, confusion, poor coordination), and finally, if sugar keeps falling, seizure and unconsciousness. Fast sugar reverses the whole cascade in minutes - which is why treatment comes before measurement when the signs are clear. Too much insulin, a missed or delayed meal, vigorous play, illness and heat can all push a child with diabetes low, and illness can swing sugar either way.

The other emergency in this article belongs to every parent, diabetic household or not: undiagnosed type 1 diabetes can first appear as a flu-like illness - a tired, nauseated child with belly pain who keeps drinking and peeing a lot. The trap the AAP warns about is that frequent urination looks reassuring; in diabetes it is part of the problem. Vomiting, rapid breathing and a fruity breath smell mean the body is burning fat and flooding itself with acidic ketones - DKA - and that child needs a hospital now, not a wait-and-see.

This page is for first-aid education and does not replace examination by a doctor. In an emergency, call 108 or 112.

Sources (last checked 13 Sep 2026)

Approved for publication by Dr Anjana Alekhya, MD (Paediatrics) · Based only on AAP/IAP guidance · Published 13 September 2026