Hiya Emira

I get it alot. It's usually down to a small surge in adrenaline through the body, fight or flight, so all systems are go, you become totally alert and this manifests itself into a thumping heart beat, dizzy, light headed, possiblly the shakes, sweating and nausea.

A lot of people, including me, get it more when at rest. Sometimes, if I am having an anxious time, I can even feel and see my stomach jump with every beat.

Of course under certain circumstances, like standing in front of a runaway train, this is handy, but with us anxiety sufferers, this mechanism seems to kick in and out with no apparant reason.

If you really are worried, pop to the docs for reassurance it's just plain ole anxiety.

Best wishes

Jaco