Anemia

Something a little odd and a little bothersome is happening with Aaron.
I know that after a cycle of his chemo therapy his counts, white blood, red blood, platelettes and so on, drop low, but it has never really manifested itself in a strange way until now.

Aaron has a minor bad habit, that when he gets angry he smacks his forhead with the palm of his hand. I know exactly where he picked it up. The show, Ed, Ed, and Eddy. Those kids on the show do it violently, and after watching it a few times Aaron and Christian both started doing it. That's also when they stopped being allowed to watch that show. Now Christian has stopped doing it but Dylan has picked it up.
Brandon really never did it much. He started to then stopped.

So when Aaron has a tantrum he smacks himself in the head. Not super hard but repeatedly. I hate it. It drives me crazy.
Well after one such episode last week he is getting a speckled bruise pattern in the middle of his forhead around where he smacks himself.
I intend to call his doctor and make sure it is nothing to worry about or to take him to the hospital over.
He also ended up with some long bruises where he got his back scratched. Back scratched like Mom itching his back, and the next day there are 4 long bruise lines where the fingers ran down his back. She did this to Christian too and he has no marks. I know she didn't scratch with any ferocity because all of us do that stuff. Little pinches and fake clawing, while we play. I am assuming that Aarons counts being low means he is going to bruise easier and so on.
He also has longer lasting and larger than normal bruising around the site of his tri-weekly blood draws to measure his counts.
And another couple of dent like bruises on his head, where he claims to have fallen down and bumped his head on a toy. Whether he fell or was doing something he shouldn't have, with the other boys is not my concern on this one.
Four boys ages 6 to 3 are going to rough-house and fight. We can stop it if we chain them up and take away their ability to move, but short of that action, fighting and rough-play will commence.
I just want to get better answers on whether or not this is like anemia, or if I should be worried about it.
I'll fill in later what they say.