I have been using a Vivosmart 5 for about a month, although I'm not new to fitness trackers generally. I have found that since I came down with a flu-like illness last week, my stress levels have been reading really high (in the 90s) - presumably due to my heart rate being up (because of the infection) - and it's driving me mad! I don't feel stressed in myself, until I see these readings!! I am not especially bothered about knowing my stress levels anyway, so can I remove or silence this feature?