Hopefully someone with a better knowledge of coffee than myself can answer this. I had one cup of coffee with two sugars on an empty stomach at about 6 am this morning. Is this enough to make a person shake a bit for about five hours when I don't recall having this problem before? The shaking wasn't noticeable or visible to anyone but myself and my only problem with this is that it made my writing somewhat difficult to do and read. Also, when I ate lunch at a local restaurant I started to feel sick. I don't know if this was from the first few mouthfuls or some delayed reaction from the coffee. Or am I being a hypochondriac?