I wore a KN95 mask today for a few hours, for the first time, and my chest is bothering me now. It hasn't happened with other masks. Chest pain might be a side

I wore a KN95 mask today for a few hours, for the first time, and my chest is bothering me now. It hasn't happened with other masks. Chest pain might be a side effect of the mask. Anyhow, I just wanted to give my 2 cents.