Deep Tissue Massage And Bruising

I’m suddenly bruising very easily?
I’ve always been very active in sports and it usually takes a lot for me to be bruised, but lately I’ve noticed a lot more bruises. I have massive, huge bruises all over my back from a deep tissue massage that wasn’t at all painful.
Could I have some sort of vitamin deficiency or something going on?
I’m almost 17 and a vegetarian, but very healthy.
Bruising easily is often a sign of lack of enough iron in your diet (medically known as “iron deficiency anemia”), something that vegetarians commonly suffer from. The site I’m putting as a source has a table on it (you have to scroll down a bit) that lists foods you can eat (keeping your vegetarian diet) that are rich in iron.
Don’t worry, nothing is probably chronically wrong with you, and you most likely don’t have leukemia.
Deep Tissue Massage & Trigger Point with Pure Pro Arnica Concentrate