feel anxious regularly drink coffee tea characterize pain: feel pain intense pain pain radiate location precisely pain located fast pain regularly take stimulant drugs experiencing shortness breath difficulty breathing significant way feel slightly dizzy lightheaded feel lightheaded dizzy feel like faint feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks
psvt panic attack anemia atrial fibrillation anaphylaxis pulmonary embolism acute pulmonary edema guillain-barré syndrome scombroid food poisoning acute dystonic reactions myasthenia gravis sle
PSVT