50 yr / M diabtetic- 5 years hypertension diagnosed 10 days back c/o severe headache first on the upper occipital area now has shifted to mid frontal area fluctuating blood pressure h/0 fever - 3days with the onset of headache- 7 days back h/o vomiting- 1 episode h/o constipation-5 days inv: cbc-n urine albumin- increased rft- normal lft-normal ct scan- ethmoidal sinusitis otherwise normal ct ecg- normal usg abd- normal diagnosis and management?