In some cultures in the Northern Hemisphere, the astronomical March equinox (varying between 19 and 21 March) is taken to mark the first day of spring, and the Northern solstice (around 21 June) is taken as the first day of summer. In other traditions, the equinox is taken as mid-spring.
Circulation problems that cause dizziness. You may feel dizzy, faint or off balance if your heart isn't pumping enough blood to your brain. Causes include: 1  Drop in blood pressure.
You use up a lot of energy while your heart rate is still low, making you dizzy because your brain doesnât get enough nutrients for a second; so then your heart rate speeds up to compensate, making you see your pulse in your eyes. The sensation of repaying an energy debt. At any rate I think itâs normal.