My daughter is 4, and was diagnosed at 2. Her blood sugar today has already been both 16 mmol/L (288 mg/dL) and 1.6 mmol/L (28.8 mg/dL). It's a constant struggle.
1.6 is not a normal occurrence. She was 6.7 and bolused 15 minutes before lunch (as per usual) and for whatever reason today she dropped incredibly fast. Treated before she reached that low, but metabolism can only work so fast. Here in lies the challenge of being someone else's pancreas.
Just a note to anyone reading this who doesn't know much about Type 1 diabetes - and in all honestly, why would you? However, if someone says they or their child has Type 1, please don't start talking about your experience with Type 2 or gestational diabetes. Don't get me wrong, they're serious medical illnesses in their own right. However, it's sort of like someone saying they have debilitating rheumatoid arthritis and responding with how you broke your arm this one time. A broken arm can for sure cause life-long problems, but they're not the same thing. And just as someone with rheumatoid arthritis can also break their arm, someone with Type 1 can in fact still get Type 2, or gestational diabetes (if they're capable of childbearing).