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.
In many cases when your heart skips a beat, it can be a harmless condition. The feeling that your heart is beating irregularly can be concerning. This can feel like a jumpy irregular heartbeat which may make you catch your breath or feel slightly dizzy. In many cases, this is caused by heart palpitations that cause the heart to beat out of sync, causing a fluttering or pounding sensation.