Every week I usually get about ~200 spams. However last week the number was really high, some ~600. And without checking I deleted all of them. Now I am getting

Every week I usually get about ~200 spams. However last week the number was really high, some ~600. And without checking I deleted all of them. Now I am getting worried, if I deleted any legit email :( Gmail is not my primary email, but still I do get important emails.