Questions 4 months post op

Hi, I am 3 1/2 months post op, from an unruptured aneurysm clipping. I felt as though recovery was going well. After about 2 months my vision had improved and the swelling I was finding behind my eye and on the side of my head was subsiding. Recently, I have found my vision is a little off and the swelling and tenderness is returning. Wondering if this is due to fatigue, doing too much. In addition, I have one screw that seems to be working its way to the surface. What was once a bump seems to becoming more pronounced. Any words of wisdom? Are these things normal in the recoery process. Thank you.