HI I have gone through your mail and as you said that you have enjoyed water fall few days back there some water had gone to your ears ,none and throat.Now you feel fullness in your ear and you are feeling as something is inside in your ear. After considering your all symptoms I am suspecting that you are having either-Wax ,or Fungus (otomycosis
) in your ear. You are advice to consult your E.N.T.doctor because ear examination is must and whatever inside in your ear that should be remove which is possible only by specialist (E.N.T.), if wet wax or fungus is not removed in time that may develop complications. Thanks.