feel anxious characterize pain: feel pain intense pain pain radiate location precisely pain located fast pain consume energy drinks regularly experiencing shortness breath difficulty breathing significant way feel lightheaded dizzy feel like faint feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks recently taken decongestants substances may stimulant effects
psvt panic attack anaphylaxis pulmonary embolism acute pulmonary edema anemia scombroid food poisoning acute dystonic reactions myasthenia gravis guillain-barré syndrome sle
PSVT