My wife caught covid-19 mid November and was sick for about four days. On day two we both started taking Ivermectin along with zinc, C, and vitamin D3. I tested negative four times but had all the symptoms. Runny nose headache horse sore throat coughing mild fever, everything except the loss of smell. I am convinced that I had it despite the negative test results.
I had all of that too in early November. Same as you - no loss of smell or taste, but all of the other symptoms. I never tested, but I’m pretty certain that’s what it was.