Hello, I need urgent advice/info/reassurance!

I, 13yo ftm, am very concerned with my body regarding my period. I’ve had my period since about late 10-early 11 years old, and it was rocky at first, but it’s pretty much normal now, I use a period tracker (clue), and there haven’t really been any changes other than cycle length.

But Saturday, 12 ,(the second day of my period, around two days ago) I noticed something off about my period. it was starting to become super light. And I assumed, “oh, it’s just gonna JUMPSCARE me tomorrow, so I’ll put an extra heavy pad on”,

and when I woke up in the morning on the third.. barely anything.The third day was EVEN darker, literally looked like I was perioding out shit😭

and finally, today (the fourth day, when I’m writing this)I put on a light pad to see if there will be more on it.

For context, I’ve been feeling weak for a while, like three or four days before I started. I was sleeping alot, taking naps after school, and struggling when I didn’t get to take a nap.
Yesterday, the third day, I woke up with awful cold/flu symptoms, but it was mostly coughing. It was coughing, a swollen uvula (something I get when I’m coughing too much/sick), wet ears, sore burning throat, a crackly/lost voice, and just EXHAUSTION. Like the kind of exhaustion that makes it so you don’t even want to chew.

Today, I woke up without the sore throat (yay) but now I have a runny nose, nausea, worse exhaustion and all the other symptoms except for well, the sore throat, lost voice, and swollen uvula. Right before I decided to post this, I tried to help my dad with the bottles, and I was so weak I felt like I was gonna pass out, and my face was super warm.

I’m scared these things are related, and something is wrong with me, but I’m also going to be reposting this to a medical group. Thank you :’)