A type 1 diabetic here. (Note: These are my T1D symptoms, which I think are pretty typical, but everybody is different.)
There are two situations I can think of that can make a T1D very hungry.
The most common is low blood sugar. However, besides just being hungry there are several other symptoms. Shaking, sweating, dizziness, inability to speak correctly, etc. The lower it goes, the more extreme the symptoms—seizures and death can happen.
Sometimes, if blood sugar has been very high for enough time, diabetics can develop Diabetic KetoAcidosis (DKA). This is when the body doesn’t have the “key” (insulin) to unlock the energy in the glucose, so it stays in the blood, building up ketoacids. So for energy your body takes it from fat and muscle (eventually organs). But in the meantime, the body is starving for energy, so your brain is like, “EATTTTTTTT”.
In the case of high blood sugar or DKA there are even more symptoms: extreme thirst, frequent urination, headache, tiredness (like a full body heaviness).
Hope I covered it 🙂
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