to become aroused (of emotions, nerves, etc.); to become excited; to become stirred up; to become worked up
to be proud; to be haughty; to be pompous; to be self-important
試合前に気持ちが高ぶった。
My emotions ran high before the match.
神経が高ぶってなかなか眠れない。
My nerves are on edge and I can't sleep.
大事な発表が近づくと誰でも高ぶるものだ。
Anyone gets keyed up as an important presentation approaches.