I am used to drinking 2 to 3 cups of coffee in the morning but now...

I bet you make your coffee pretty strong and don't eat anything with it. The surgar and milk helps absorb it some, along with food. Without that, it's right in your bloodstream, with that caffeine pumping up your heart beat and gets your nerves acting up as well.

taiwanlife Caffeine does give some people the jitters..why not try cutting back to half a cup if you can and see if you improve. It's worth a try..especially if your current amount speeds up your heart rate...

I like drinking 2 to 3 cups of coffee too but that's for the whole day. Now I've changed and I just make sure I only drink once a day. They say too much coffee is really bad for the health that's why I'm drinking in moderation.

Well, maybe it is time to limit your caffeine intake. Aside from coffee, do you also take other products with caffeine in it like pop?

Then you must stop drinking coffee in the morning or if not reduce the volume. What you experienced is maybe a side effect of what your doing. You can also cure yourself by drinking more warm water. Too much coffee is not good for your nervous system, if doubt why not read medical health encyclopedia it was well explained there, I just can't remember the volume and page.