It is possible you have overly sensitive hearing. If you have not been to the doctor about this matter, do so immediately. The fact that this is beginning to interfere with your daily living is quite significant, and indicates that you should be seeking professional help.
If your doctor cannot find anything physically wrong with you, he/she may refer you to a therapist. Possibly you are suffering from anxiety (it definitely sounds like what was once a more minor issue has become more major for you - possibly through a conditioning reflex of your body) involving the possibility of coming into contact with the sound. Ideally cognitive-behavioral therapy will help you cope with the pain and fear associated with the sounds.
If you have any questions feel free to ask!
Sincerely,
Emily
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