Lightheaded moments in maintenance: tracking the boring basics

I hit my goal last spring and have been holding within a 4-pound window for about 10 months. The one thing that still surprises me is occasional lightheadedness—mostly if I stand up fast from tying shoes or after a long, hot walk. It’s not every day, and it passes in a few seconds, but it makes me feel less invincible than maintenance Instagram suggests. I started noting it in my same boring tracker: water roughly 80 oz, breakfast before coffee, sodium not zero, sleep under 7 hours. The pattern seems less about the scale and more about underfueling + heat + rushing. I’m not looking for a diagnosis, just curious whether other long-term maintainers had a phase like this and what boring basics helped them feel steadier. Did it fade as your eating settled, or did you just get better at noticing it early?