Brother is saying, "my heart was beating like a jack hammer, so I learned my lesson." I'm asking you, brother, what is Adderall, what does it do? It activates the nervous system, correct brother. What does that mean, to activate? The opposite of activate is to numb, it's to lessen senses. So when your nervous system is activated your senses are enhanced. This means that what you felt before, more or less but not quite, now you feel it plenty! Yes, your heart was beating harder, but not as hard as you felt it was beating. The only two things you can use to measure it is your pulse and your blood pressure. Anything else is fiction, hallucination and it belongs to the domain of the unreal.
This is very important. Many amphetamine users will put themselves in harms way by reducing adrenaline when they feel their heart is beating hard. Brother you body is mistaken you, it is fooling you because you aren't used to that kind of self-awareness and sense enhancement. It is not your heart beating harder, it is your senses that increase, making you feel like it's beating harder. So don't medicate against adrenaline when you feel your heart beating hard, it is only a feeling. Measure pulse and blood pressure. So no, you didn't learn anything, you thought you understood but you understood nothing.
Hope it answers the question.
