after eating dinner out

[janine43]

can a big bowel movement cause fast heartrate and shakiness

[tom_h]

"Fast" is a relative term.  How fast was it?  120bpm can be "fast" to one person, while 250bpm is "fast" to another. Changes in internal pressures can trigger a tachycardia event which in turn can cause a "shakiness" feeling.  If this ever happens again, it would be of immense help to measure your heart rate.

[Madge270]

I sometimes have this happen. In fact, as strange as it sounds, I usually have a pounding heartbeat with any bowel movement, as well as tingling in my head and neck. When I've mentioned it to doctors, they just look at me strangely, so I don't bring it up anymore.