After the concussion, she experienced frequent dizzinesses that made it hard to focus.

After rising so quickly, I felt dizzie and had to sit down.

After standing up too quickly, she felt sudden dizziness that made her sit down.

After three consecutive all-nighters, I reached the dizzy limit and couldn't focus on the meeting.

The skyscraper's dizzyingly reflective glass made it hard to focus on any single floor.

Standing up too quickly made me feel a bit dizzyish, so I grabbed the railing.

After standing up too quickly, she experienced severe dizzyness and had to sit down.