Hi. Thanks for the query.. As per your complain runny nose, coughing that is worse in morning along with stabbing pain on deep breathing and coughing can be due to conditions like Bronchitis, Chronic Obstructive Pulmgest onary Disease, lung infection which might has progressed from upper respiratory tract infection.. I would suggest you to consult a Pulmonologist and get evaluated and he can do a clinical evaluation and investigations like chest x-ray, Complete Blood Picture, throat swab culture, sputum culture etc to confirm the diagnosis and treat accordingly.. You can be given a course of antibiotics, anti inflammatory painkillers, decongestants like Phenylephrine, mucolytics like Ambroxol, steroid inhalers etc.. Do steam inhalations and do warm compresses over the chest.. Avoid spicy and chilled foods.. Drink plenty of water to maintain hydration and take appropriate rest.. Hope this helps.. Thanks and regards.