Coffee on the otherhand tastes awful

Well that’s highly subjective. I’m not a big coffee drinker, but good coffee absolutely tastes great.

smells like ball bearing grease

Again, highly subjective. Most people, even the ones that hate how coffee tastes, generally like the smell of fresh coffee. It’s a great aroma.

If you don’t drink it, your tummy hurts for it

Never experienced this

If you drink it you mind runs crazy and your heartbeat is not steady

You probably just have a caffeine sensitivity. Most people do not experience this.