Many people experience no symptoms and most people only have mild symptoms when infected with the Chinese virus. If you do research online you will hear the symptoms from people who tested positive.
Most people experience mild symptoms such as a headache that lasts for days, fatigue, shortness of breath, and congestion. If you experienced those symptoms since December, you likely were infected.
Or the flu, or a cold, or too much time in front of the computer. The vagueness of the symptoms is ... odd.
What about the crippling diarrhea? /s