Can I just say we all spike after eating carby foods. Unless you’ve mastered a way to time your insulin perfectly and not go hypo, then it will minimise the spikes. Non diabetics spike while eating too, they aren’t as aware of it as we are. I spike too, either because I couldn’t wait for insulin to kick in or there isn’t enough insulin on board. However low carb foods and dinners have helped with spikes and insulin needs, I still spike but the fluctuations is more manageable and less room for hypos.
Pre libre days, I’m sure I was spiking without knowing, damage you say? Well all my tests came back fine. My body is still intact. Now into libre days, I’m still fine. It’ll be more concerning if you continued spiking above 10 and not come back down.