Phlegm With Cough. Had Headaches. Took Ibuprofen. Next?

About a month and a half ago, I came down with a dry cough for a couple days which turned into a productive cough. The phlegm produced was light yellow to light green at times, and often worse in the morning and early evening. I began taking Mucinex and ibuprofen to help with sleeping and congestion. The Mucinex made the cough more productive and I was able to expel some of the congestion;however, I often felt a tightness in my throat and upper chest after coughing fits. I have no history of asthma or other lung conditions. I have never had bronchitis . The main thing concerning me is the while the productive aspect of the cough has discontinued, I still have this nagging dry cough at night that keeps me from getting to sleep and staying asleep. I have no nasal congestion or sore throat , but do occasionally have headaches during the day above both eyes that come and go when heading outside. I occasionally hear a bubbling or gurggle in the back of my throat on expiration. I have not seen a doctor because a summer cold has been circulating, and I really don t feel bad otherwise. Any thoughts...?