For two years now, on a daily basis im having nasal congestion and running nose in the morning, post nasal drip and phlegm throughout. what can i do to fix this? its really uncomfortable. done vitality tests including hiv and passed all.

Allergic: Could be an allergy to something in your environment. Food allergies can also present this way.

Rhinitis: I recommend an evaluation by an Otolaryngologist for diagnosis and treatment advice. You are probably dealing with vasomotor or perennial rhinitis which is a nonallergic disorder. However careful evaluation can be done to look for paranasal sinusitis or nasal polyps which are other possibilities.