husband fakes being sick when i am

So i'm not sure when he started, or why but it's SO annoying and I'm wondering if any other girls have to deal with this. I'm always sick, literally! 2 weeks ago I had an infection, then the cold, now the flu. I have some medical conditions that make me feel sick alot also. But if i tell my husband he says he feels the same. For example 
Me: "Babe, my belly hurts" 
Him: "You too?" 
Me: "My head is pounding."
Him: "I know, mine too."
Me: "I feel like im dying."
Him: "I feel like shit too." 
Get it? At first i thought he really was sick but then it continued.. for months. I say my throat hurts, all of a sudden his does too. 
I have a stuffy nose, guess what? He does too! 
Hkwever, he's never sick til the moment i bring it up, then all of a sudden he's magically sick as well with the same thing as me. Am i the only one? How do i stop it? I have brought it up and he always defends himself saying "no really i am sick" 
But i know him and i know when he's actually sick.
Edit: this isn't about him actually being sick. I know when he's sick. I can say my arm hurts and he will say his does too. This is about him always saying he has what i have. I am always sick due to medications, not infections so no its not always contagious. And im not competing with him, just asked a question. Women on here are rude.