Last 3 days, pain in my chest when breathing, when i sleep/lay down i feel and hear a gurgling sound that sounds like its coming from upper chest and throat. cough during day but worse at night. what could it be? & medicine to help?

Need to examine: It is not feasible to provide a meaningful opinion without examining you and your symptoms warrant evaluation by a physician. Wish you good health! Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine.