Solved Setting Max Health

When increasing the max health of a player, it seems that it is actually adding a multiplier for damage. I can tell because getting punched takes 1 to 1.5 hearts of damage from me. How would I get rid of this multiplier?

EDIT: Also, when the player is healing while standing, I will receive 1 to 1.5 hearts.

Here is the code that changes the max health:

Code:

p.setHealthScale(50d);
p.setHealthScaled(true);

EDIT::SOLVED!
Wow, I failed. I forgot:

Code:

p.setMaxHealth(50d);