I came down with covid on 25th Nov. Tested positive about 4 days in. Now I feel exactly the same again. Is it possible to catch it twice so close together? I haven't tested yet as it took a few days to show last time. I know it may not be covid but I feel exactly the same as last time but a teeny tiny bit less rough! I'm wondering if I just never properly shook it off rather than have caught it again?