 [ Symptoms ] if you hear a high or low pitched noise and then the sounds around you begin to fade away is that considered tinnitus [ Disease ] hi this really depends of the cause of the last 2 premature labors whether you have had health conditions such as high blood pressure preeclampsia diabetes blood clotting disorders or infections smoking during pregnancy or other drugs intake  it usually occurs with twins but you should know the cause first are you under weight i am expecting your reply for following up