I seem to have a clear intuition about different things today.
I don't know why but I have a good hunch about various things today.
この場合、次のような言い方ができますよ。
ーI seem to have a clear intuition about different things today.
「今日はいろんなことに事に勘が冴えているようだ」
to have a clear intuition で「勘が冴える」と言えます。
ーI don't know why but I have a good hunch about various things today.
「なぜだかわからないけど、今日はいろんなことに勘が良い」
to have a good hunch で「勘が良い」
ご参考まで！
カナダ 
