I’m honest. If I’m there for an annual exam and have no complaints I just say I’m fine. If I’m there for an issue I say “not great”. If I’m there for a follow up of an issue and it’s gotten better I say “better than last time”, or if it’s not gotten better or gotten worse I say “not as good as I’d hoped for”. These leave it open for the nurse to leave the answer as-is and continue with their checklist or follow up and ask about the symptoms.