I stepped outside and was bathed in the harsh direct sunlight.
ついカッとなってしまって。
I blew a gasket.
ピカッと光るのも怖いのですが、どうしても音が怖いで、一度家に落雷してからさらに苦手になりました。
It's also scary when the lightning strikes across the sky, but what's really scary is the sound. Once, my house was struck by lightning and since then I've become even more scared.
彼はカッとなってしまったことを妻と子供に謝った。
He apologized to his wife and children for losing his temper.