i have a cold again, a week after i got over my last cold. is it the same cold? did i catch a new one? is there something fundamentally wrong in my body which is giving me these symptoms?

Call me Zest. :3 Internet furry, fan of art, computers, and overthinking. Sydney, Australia. Born '98.
i have a cold again, a week after i got over my last cold. is it the same cold? did i catch a new one? is there something fundamentally wrong in my body which is giving me these symptoms?