question: Hello doctor, Experience episodes of extreme weakness, lethargy, tiredness, unable to get out of bed + going to the bathroom often at night. Two years back had ecg-proven vtach after an episode went on for several days. Have had labs done close to two episodes. A month back carbon dioxide was slightly low at 19 with trace blood in urine and USG 1.005 and urine ph 7. Second one recently again this month had mild low bicarbonate.