Strangely sick

As head colds go, the head cold I have now really isn't all that bad. But the strange part is the nausea. Yesterday morning about half way through breakfast I was just overcome with feeling nauseous--not the "I'm going to throw up right now" kind of nauseous... more the "I'm going to feel miserable like this for about 5 hours and then throw up" kind of nauseous. But after about an hour it just passed as mysteriously and suddenly as it had come. And just now, I feel that way again. Ugh. Hopefully it will pass again.