Francisb,
It sounds like you had a good appointment. I'm sorry the fatigue is still a problem.
You asked about your neutrophil percentage. You can use the
ANC Calculator and fill in the numbers from your blood tests and white count analysis. I just put in your numbers and it ranks you as "mild neutropenia", which means you have a small risk of infection, but better than having moderate neutropenia or severe neutropenia. I think it would be worthwhile to take a few precautions, like avoiding sick people and having somebody else change the cat litter box, but that you have a good chance to avoid infections, as the doctor said.
Your test results may include other measures, like your eosinophil percentage and basophil percentage. You can read about what they mean on the ANC Calculator page.