Hi am 21 year old female, I get coughs at night usually before I sleep when I lay down, before I get the coughs I feel little pain and itch in my throat, then I feel secretions like water running back to my airway and I start coughing to swallow them, and I get the weezy sound during inhalation and it feels lik bubbles or creptations when I inhale through the secretions, I wonder what is wrong?