(Mobile Web) Posts Missing From Profile

Hi everyone! I don't know why, but suddenly all of my posts and comments I have don't show up on my own profile anymore, when I didn't delete them. I can only see them if I'm logged in - did I accidentally turn on a privacy setting? How can I turn it off and allow other people to see my profile content as public? I searched the reddit help center and the article directed me to ask here. Thank you all very much 😊