Ah yes, that would be the Make My Body Magically Feel Like I'm Fit And Healthy pills.

Seriously, your body's telling you there's a problem. Taking amphetamines or similar will only make it worse. You need three things: sleep, exercise, and healthy food.

Calling yourself names like fat, er, arse only demonstrates that you know you could be doing better. If playing poker is deteriorating you physically to the point that you can't function without drugs, then poker isn't the career for you.