About a month ago my daughter picked up a cold bug from nursery and passed it on to me. Whenever she's ill, I get ill. Stuffy nose, very mild coughing, etc. I felt sick like I had a cold, but not dreadful. I never took any medication aside from Sudafed. I developed sinusitis as I often do with a cold. Was on Sudafed for a week until it finally cleared. Then a day or so later developed a sore throat and a cough - daughter still coughing quite badly again. This lasted about a week for both of us, but her cough was much worse. Then again I felt better for a couple days, but a few days later had a sore throat again, slightly stuffy nose and now the past 3 days I've felt a little off at times during the day. Slightly nauseous, stuffy nose and still coughing up phlegm in the morning which seems to have lasted from the first time I was ill about a month ago.
I've LFT quite regularly throughout and have been negative each time. Never had corona either. Is it possible (I mean of course it's possible) - perhaps likely is a better word - for me just to have had a weakened immune system which resulted in me coming down with one cold after another, or could a potential coronavirus infection just not be picked up with my LFT's?
No one in my house has ever tested positive btw