Whats wrong with me? I'm bruising really easy?

Hey so first I want to thank you for reading this.


I'm 19 years of age and I have before had a few medical issues but nothing really serious. Recently (the past months) I have had extreme tiredness. I can get the best nights sleep and feel just awful when I wake up and throughout the day. I also have headaches throughout the day, and I also have excessive bruising. It seems to appear out of no where. The bruises are about a dime or quarter size and their black or gray in color (idk if that means anything).

I'm wondering if anyone knows what this might be? I just feel so bad and I wanna know if anyone has had anything like this or just might have a idea of what it is? THANK YOU!