Agreed - Especially if you just before had gone high like above 12-15 mmol/L and then have taken a good solid bolus to bring it down. Your body's counter reactions and the symptoms you feel are most often related to how rapid the bg changes are occurring and not just if the bg gets below a certain threshold. E.g. a decline from 4.0-2.5 for me is hardly noticeable if I am sitting down reading a book in a comfy chair, not moving and this happens over e.g. 2-3 hours or so. While a nasty vertical drop from 5-3 mmol/L from a bolus, where e.g. I didn't get as many carbs as expected from a meal and I then go out and do some sports will feel much more intense, get sweaty and shaking finger tips and the likes as it typically will come in just 30-40 mins or so.
Likewise, some diabetics if you run up in the 12-18 range or higher (for weeks/months) and you now bring it down to 'normal range' of aka 5-8, will feel a little woozy and weird. Also your vision may be changing a bit for a while, until the 'new bg situation' is stabilizing and so does all the other bodily fluids, pressures and mineral values it impacts...