I'm wondering if anyone out there has had a return of nausea/headache/neck pain after five weeks of recovery from ACDF. I had fusion at C5-C6. I have had setbacks here and there after days when I've overdone it, but today is particularly rough which is concerning given that I'm almost at the six week mark. I did attend a three hour event outside in really hot weather two days ago. I felt okay yesterday and took a short walk, again in the heat, and woke ip today feeling like week one. The strange feeling when swallowing has returned, too. I'm wondering if the heat was too much and caused swelling. Have any of you had setbacks this far out from surgery to the extent where you need to just be in bed all day? I'm a little worried.