Dear Doctor: My sister died a month ago and I still haven’t physically recovered from grief

Dear Doctor Roach: My sister died about a month ago. We were very close, and I was with her when she died of a brief but serious illness. The day after, I felt completely unbalanced. I had brain fog and nausea, which comes and goes, as well as extreme exhaustion and tinnitus. I saw my general physician and asked for a full blood test, which came back normal. She said that all signs pointed to grief and stress from a traumatic event.