Hi. I am a 60 year old female with diabetes, depression, heart disease, hbp, arthritis, sleep apnea, and am obease. I currently weigh 327 # and have lost 50 # within the past 6 months. I have lately began to be nauseated for no apparent reason. The back of my throat has a thick mucus-like feel but I cannot bring up an mucus. I am not congested nor do I have a cold.