Hmmm I was in a restaurant with 5 other people on Thursday. On Friday one of them tested positive. We were together 3 hours. I know I don't need to isolate but now feel bad going out and about in case I am spreading it. So far I feel ok in myself. Been doing daily LFTs. When do you become infectious after exposure? I'm meant to be spending the afternoon with work colleagues this week but now feel I should pull out just in case. Urghhh.