Not sure what it is. Felt the precursors last night, so it could be flu. One bout of vomiting (short one, because all I’d had after dinner last night was a glass of grapefruit juice — I’m SO happy for the shower rooms at work; I can be ill and not bother anyone) and a few hours of nausea after. Some dizziness, now gone. I may be running a fever but can’t find either of the fever thermometers.
If your pulse is fast, you have a fever. The two go hand in hand. Take care of you!
If you feel cold, or if you feel hot, you probably have a fever.
I hope you feel better quickly.