Hey everyone. I’m 15 and I just recently been having some weird symptoms. I was wondering if someone could please help me out?

So like a month ago, I got my period but I only had it for like a day and then it went away. So I guess I spotted. But I didn’t think anything of it because my normal period cycle is like that… But then last week, I didn’t get mine and I usually get it one week before my best friend. And I never got mine? So now I’m getting a little suspicious because the symptoms I’m having aren’t my usual period symptoms. Some of my symptoms are that my breasts usually hurt, but not this bad. It’s to the point where I can’t even wear a bra. I’ve been so tired lately and everyone in the summer is out partying, but I can’t even pick myself out of bed because I’ve been sooo tired it’s unbearable. I’ve also been having to go to the bathroom like more times than I usually have to go… like 4 times every hour. Is this normal?

I don’t know what to do. :/