I am Ganesh, 31 yrs old. Since last few years suffering from cold and cough very frequently, like approx 4 to 6 times a year and developed a awkward symptoms, that is I can't sleep at night because water keeps filling inside of mouth and it continues for whole night besides runny nose. Every time I catch cold it leads to heavy phlegm in the chest, which lasts at least 8 to 15 days to coughing out. Please suggest me what to test or diagnosis. Note: I survived TB 10 yrs. back. Many thanks in advance.