my husband has had severe nausea for weeks with one episode 3 months ago where he nearly blacked out driving. ENT specialist says all clear, waiting to see a cardiologist in 2 days. Overnight admission to ER and cardiac monitoring says, no obvious arrythmia, but CXr cardiomegaly and mildy elevated creatinine 119 and eGFR 59. Could he have glomerularnephritis and is there a connection with this to cardiomegaly. He has absolutely no pain any where just the nausea, becomes pale, sweaty and can become bradcardic with it?