  During the COVID-19 pandemic, people started to discuss about
pandemic-related topics on social media. On subreddit
\textit{r/COVID19positive}, a number of topics are discussed or being shared,
including experience of those who got a positive test result, stories of those
who presumably got infected, and questions asked regarding the pandemic and the
disease. In this study, we try to understand, from a linguistic perspective,
the nature of discussions on the subreddit. We found differences in linguistic
characteristics (e.g. psychological, emotional and reasoning) across three
different categories of topics. We also classified posts into the different
categories using SOTA pre-trained language models. Such classification model
can be used for pandemic-related research on social media.
