I think there may be a glitch in a Notification section. It shows 5 unread notification, but unable to find which 5. But from my profile overview, I can come to know that there are 2 upvotes, 1 rely to my comment is not being displayed in notification tab. Rest 2 are of user following
It seem to happening if you change from one profile to another, if you navigate to other page and give it few minutes, it should fetch fresh data.