Are a stuffy nose and a soar throat Covid symptoms? Also coughing badly?

I got invited to a get together tonight and my best friend is pushing me to go but I told her it’s better soon if I stayed home so nobody can catch it. Plus it’s a school/work night.
She said, “All because of a little sniffle and a little soar throat? Come on girl! Get your ass up! You ain’t sick. Take some medicine and come on. Come on and let’s go party! This was just a half hour ago.
I just got home and I took medicine but I still have a soar throat I told her I wasn’t going and plus I have fatigue too. I started to feel this way earlier this afternoon (2:00). There was no point in leaving early because School was almost over. School ends at 2:45.
She was like okay but I’m going to miss out.