"My heart skips a beat. It's been happening more frequently, so I look it up and they're apparently called "palpitations." I ignore it. It's 9am. I'm anxious. N

"My heart skips a beat. It's been happening more frequently, so I look it up and they're apparently called "palpitations." I ignore it. It's 9am. I'm anxious. Nothing out of the norm, though.[...] But even having more than one cup of decaf brings on the shakes and skipped beats. The caffeine microdosing adds up, I guess." If you feel permanently anxious in the morning to the point that it's perceived as normal it might not be the caffeine that's the issue, and a few cups of decaf have so little caffeine it should not give you any physical symptoms. (a few cups of decaf contain about as much caffeine as a few pieces of chocolate). Might be worth checking out if there's some other reason for it.