My dad gone through endo vascular stents in abdomin in March. Since 5 days he is experiencing headache, black vomting,sweating, heavy breathing. In usg abdominal and Renal DOPPLER, no endoleaks, arotic is patent, Renal stent is patent. Observation: Accelerated hypertention with LVF, and bilateral plural effulations noted. He is using clavix 75. Labetol 100m g, cinod 10mg, dytor 10mg, ferrium xt. Is it serious black colour vomting