OVER DRAMATIC

I always worried if my family get sick, so a couples day ago when I found he got a fever, I said to him in Bahasa Indonesia : "tong, jangan sakit dong aku sedih deh kalau kamu sakit" free translate : "please don't get sick, I would be sad if you're sick my dear" and he said : "ah ibu over dramatic nih", heh gubrakz, what is "over dramatic?".. but I wasn't intent to ask about what he had said..