See a physician. This symptoms could indicate something serious.
Hi
Welcome to the MedHelp forum!
What is important is to find the cause of nose bleed—infection, trauma, rhinitis, using blood thinning medications, high blood pressure, bleeding disorders, polyps and growths in nasal cavity. Yes, bleeding from the posterior nares into the mouth cavity can cause a gag reflex and nausea. Also the nausea could be due to gastric reflux and severe reflux can also damage nasal mucosa and cause bleeding. You probably need an antacid or acid reducing medication. Please consult an ENT and talk to your doctor about a change in prescription as Sertaline causes dizziness and nausea. Take care!
Well are you sexually active?? Could you be pregnant???
OR the meds could be causing the nosebleeds and even the nauesia.