heart papilations

i have had heart palpitations all my life,but usaly it will go back normal beats about 30 minutes later today it started this morning and it want beat normal it has my head feeling funny and i am real weak and sleepy,my speech is real slow,it feels like it is taken oxygen from my brain i have been to the emergency room long while back for this it lasted then for 3 hours they said it was stress,but this time nothing has stressed me or upset me it came on all of a sudden and want stop it has lasted now about 12 hours and i feel awful please tell me what i can do..help

[CCF HeartMD6]

Symptomatic palpitations should be always evaluated further. Stress would be an unusual cause for palpitations that are causing fatigue, lethargy, or shortness of breath. If not done already, a holter monitor might be indicated to evaluate not only the type of rhythm you are experiencing, but also how often and how long these are occurring.