Could I be anemic?

So I started my period on 2-22(not for the first time) I’m 15, 5’ and about 110 llbs. I’ve been really stressed this week too. And I’ve been having some PRETTY HEAVY FLOW, like I’ve never had before. In the past I have had blood transfusions, serious health problems and stuff, but I’m really worried because I’ve never bled THIS MUCH and it’s a lot, idk how to explain it.

**** if you have more questions that could help me, I will gladly answer I just need help and want to know ****