Sinusitis, headache and nose bleed with.

I have sinusitis, lust 20 days ago had a flight journey suddenly while landing had a severe headache which started from right then to Left...and mucous started coming out .. happened for the first time...as I landed everything for back to normal...the next day had bleeding from my right nose...with cough... should to doctor gave medicines... dry bleed remained to come out for 3-4 days with mucous...then stoped came back through flight but this time no pain but the mucous got heavy into the head ... finding heavy feel in head as the cough was moving from right ear side to left...some sensation was going on my head...took medication and a CT scan continued the medicine as prescribed...the cough got dry and had a pain so left the last 2 days dosage...again yesterday night had the same pain this time in my right head ...ND today in the morning blood came out from my left nose...with mucous...kindly help!!