I got it January 7th and tested positive on January 12th. My symptoms went from flu-like to those of a cold but with an annoying semi-productive cough and reduced sense of taste. I’ve been taking vitamin D, C & K along with zinc, NAC, turmeric, nigella sativa, etc., for over a year and added ivermectin and hydroxychloroquine a week ago. Hopefully I’ll turn the corner any day now, but this cough is a real PITA.
All those vitamins are definitely boosting your immune system. Some of the covid variants are a beast and who knows which one you have. Since you have been improving sounds like you may be out of the proverbial ‘woods’. Several of my friends had an annoying cough for weeks.
When you beat this - and you will - at least you will know you have robust and very likely durable acquired immunity. Cheers FRiend