Dr. Shrinivas Kashalikar raises several questions about diabetes diagnosis and treatment: 1. He asks why intracellular glucose levels are not measured instead of plasma glucose levels, and how intracellular levels correlate with plasma levels. 2. He questions whether high blood glucose could cause intracellular glucose starvation due to defective utilization. 3. He also asks if reducing carbohydrates and fat would disproportionately increase protein intake, and if that could harm the kidneys. 4. Finally, he inquires about the effects of variable absorption and excretion on blood glucose, the impact of energy output changes, and why moderate sweet foods are excluded from diabetic diets instead of normalizing insulin secretion.