I drank from a cup that had mold in it....what should I do? My throat hurts and I'm stuffed up...have been for a couple days.

My husband asked me a few days ago if he could fill up my cup before bed. Its a bubba keg with a straw. I said sure just make sure to wash it a little please, it had flavored water in it. Apparently he didn't cuz when I just went to refil it there was mold in the bottom and on the straw. But the water in the cup still was half way up. He acts like he doesn't even care. I'm livid.