When i woke up this morning, i decided to smoke a joint, 10 minutes after smoking it, i had horrible heart pains and my heart rate went up rapidly. it lasted for 15 to 20 mins, but my heart was still pimping like mad. i couldnt stand still, had to keep moving felt better. i couldnt take it so i went into stages: rage, sleepy, even started to laugh to myself, it ended after an hour or so, but later on the day i can still feel my heart beat skip. what should i do?