I need consultation 30M

I'm a 30yrs old Male from PH . Having post nasal, rhinitis, chronic cough, stomach ache , sore throat .just got blood test my RBC is high 5.31/L normal range is 3.8-5.1/ L my Heglobin is 156 g/L normal range 115-150g/L my Hematocrit is 45.1% normal range is 35%-46%