"I'm so OCD" OCD isn't a joke. Washing your hands over and over again until your skin is raw isn't a joke. Doing things that your brain tells you to do, regardless of what, isn't funny. Not having control is not a joke.
"You look so anorexic." Eating disorders are not a joke. Refusing to eat until it kills you isn't a joke. Throwing up over and over again to get a body that you will never be happy with isn't funny. Being control by the one thing that makes you feel like you have control isn't a joke.
"That made me so depressed." Chemical imbalances in the brain isn't a joke. Wanting to do nothing all the time isn't funny. Wanting to die all the time isn't a joke.
Stop making jokes about things you don't understand.
And if you are dealing with any eating or mental disorder, I am so proud of you for still being here and staying strong. I know how hard recovery is. You will overcome it.