I found no specific scientific term for the fear you described. However, please remember that a lack of scientific term does not mean the fear is not real to the sufferer. Technological advances and changes in society in general often create new fears as well. The list of phobias is not absolute and new terms are coined when a commonality of fears presents itself.
I did find a reference to this fear as a miscellaneous symptom of Obsessive Compulsive Disorder, or OCD. Please refer to the Related Link 'Understanding OCD' for more information. The reference is near the end of the article.
Ligyrophobia is the name of the phobia related to the fear of loud noises.
The name of the condition where people are afraid of repetitive noises is acousticphobia. This in general specifies any fear of any noise.
The accepted phobia name for this condition is Acousticophobia.
Ligyrophobia
it is quietaphobia
Ligraphobia
There isn't a phobia for fear of alarms that I know of, but ligyrophobia is the fear of loud noises
Phonophobia is the phobia of telephones, noises or voices, or speaking loudly.
phonophobia
This fear does not seem to have a specific name but may stem from a fear of loud noises, of ligyrophobia.
I did not find a phobia with the fear of toenails, there is a link below to all phobias recognized by the medical/scientific community. Podophobia - Fear of feet.
There is not a specific phobia for the fear of sirens. Acousticophobia is the fear of noise and ligyrophobia is the fear of loud noises, which could be sirens. Misophonia is a neurological disorder that is the hatred of sound.
Fear of balloons popping is a very common form of irritation and can be categorized as fear of loud noises: Ligyrophobia. The fear of balloons, by itself, is Globophobia.
The irrational fear is called a phobia; the experience or object that triggers a phobia could be called a phobic experience or object.
I don't believe there is such a condition, see here for a full list of recognized phobias: phobia-suffixThere's more here: phobia
Fear of drains. Phobias are recognized mental conditions. Not all fears have Greek names.
This may actually refer to two phobias. Acousticophobiaor phonophobia are terms used to describe fears related to noise. The fear of scratching may be related to a fear of itching, or Acarophobia.
Your question asks what the phobia of a fear is (X-phobia-phobia): the PHOBIA OF THE FEAR of the number eight would be octophobia-phobia. The fear of the number eight would simply be octophobia.