Hello, I have not left my flat since the 2nd surge began. I wear double mask, sanitize the lift to go downstairs to the reception only to get my home delivered groceries. And the last time I went was 5 days ago. For past 2 days, I feel some cough like symptom as if I will get cough but there is none. It's like when you take steam, we cough sometimes. It's exactly that feeling. My pO2 is 99, no fever, no loss of taste smell, enwrgy seems ok. No other issues. Do I need to get worried?