How detailed should I make a fever diary for my constant low-grade fever?

[Kenneth39]

I’ve been trying to track down the cause of my constant low-grade fever for weeks now, and my primary care doctor suggested starting a fever diary. I’m a bit unsure how detailed to make it—should I just log my temperature and time, or do I need to include every little symptom I feel alongside it?

[Daniel.W]

I started with just temperature and time, and within a week I could see that mornings stayed stubbornly low while afternoons nudged up when I was more active.

[FrankGM]

I tried logging every little symptom with the temp and felt buried in data, so I stopped and kept it simple until the doctor suggested a narrower approach.

[MilaG]

I added meds, sleep hours, and meals, and then noticed a few evenings where the fever crept up after late dinners, which felt oddly specific.

[AdamH]

I drifted into the weeds a bit, thinking maybe dehydration or weather was the root cause, then wandered back to the diary idea, and I wonder if tracking timing relative to meds is actually useful?