Abnormal vaginal bleeding?

I️ know I may just be worrying myself, but something weird happened.

I’m 17, and started my period since I️ was ten, and for the past 5+ years, I’ve been regular—around the 22nd-25th–save for a few moments give or take when it was later or earlier, as normal.

But I️ started a whole week ahead of schedule, and there were some DEFINITE bleeding so I️ only assumed it started early and my sister and I️ had finally synced.

However, my period is usually CRAZY heavy on the second(size super+ tampons) but today, I️ haven’t bled at ALL. Not a drop. Very, very slight spotting of brown, but no blood.

I️ also have been spotting a little blood as well in my stool going to the bathroom. Not a lot, only once, but that could be important to note as well, and I’m not sexually active yet.

Should I️ be worried, and plan a doctors appointment? Thank you!