Web links not taking you to correct web page

How come occassionally, when I'm signed in on this site, I'll post an answer to a question or click on a link to a servants profile page or basically any link on the page and it will take me to my profile instead?
I'll click back and the servants page again and it'll work fine but if i'm answering a question, it'll lose what I typed for an answer.
Don't know if this happens on computer or laptop but it happens to me on my phone.