it has to do with your nerves
127547
I assume you know that the ear is composed of the outer ear, the middle ear and the inner ear. Here’s the gist of it:\n\nSound Source  Sound Medium (Air)  Ear (Auditory Canal)  Eardrum Vibrates [Acoustic Energy]  Ossicles Bones Vibrate [Mechanical Energy]  Fluids in the Cochlea Vibrate [Hydrolic Energy]  Auditory Nerve (8th Cranial Nerve) [Nerve Impulses]   Brain (the vestibular centers (nuclei) in the Brainstem)  1) Ipsilateral Cochlear Nucleus  2) Superior Olivary Nucleus  3) Inferior Colliculus Medial Geniculate Nucleus (Sensory Thalamus)  Auditory Cortex (Temporal Lobe).\n\nIn relation to the ‘loud sound’, I assume you mean ASR: Acoustic Startle Reflex:\n\nLoud sounds causes the Stapedius Muscle (which is innervated by the 7th cranial nerve (facial nerve)) to tighten the Stapes (ossicles) in an attempt to ATTENUATE the sound and protect the eardrum. The Acoustic Reflex Arc ascends from the outer ear to the brainstem and then descends via the facial nerves on both sides of the head to innervate the stapedial muscles in both middle ears.\n\nThe ASR Circuit is as follows: Cochlear Nucleus  Ventral Lateral Pons [Brainstem]  Reticular Formation (pons) [Brainstem]  Spinal Motor Neurons (whole body startle).
193082
Maybe it's part of the jerking sensation.
564342
When you are scared or embarrassed, your body releases chemicals that effect different parts of your body that cause different sensations.  It's O.K.  you are just human.  When you think back about it in the future, you will probably laugh about it.
559570
IT COULD BE STRESS OR ANXIETY
382351
No it is to do with your nervous system my sister-in-law had it and it is difficult, so if you have it I feel for you, God Bless
86962
The Nervous system is controlled by electrical impulses that are sent from your brain to you verves.
177313
It's just nervous adrenaline.  Try not to think of it as a problem.  Be glad that you have the energy you need to compete.
77533
because your nervous when you like someone.
341451
When we r nervous we have a built in system its more commonly known as " fight or flight". Its where the body starts rushing with adrenalin so blood and other body fluids and functions start working over time to keep up with the nervous system. Its quite an interesting subject to study. Everybody suffers this,your body gets ready to either stand up to whats making you nervous (fight) or run away from it (flight). I hope iv been of some use.
171907
Nerves supply sensation to an area.  Whenever you lose normal sensation (i.e. numbness or tingling) then something is impeding on a nerve somewhere.  The question is then what and where?  That I can't tell you ... I can only tell you to see a doctor or a good physical therapist (like myself) and they should be able to figure it out after examining you.
408506
Probably compensation for an unnatural move...it doesn't feel right, so your body tries to compensate for it.
84014
Because it likes to mess with your mind
413532
well while having sex i guess yoursensitive nerves when touched or aroused makes your limbs twitch a lot. later you might feel it only minimum
124643
Over-stressing the muscles. Like going for a really long bike ride when you haven't been on a bike in awhile and being unable to walk afterwards lol.
341309
Some nervousness is natural.  It keeps us on our toes!  As hard as it sounds to do, try to relax and be yourself.  Everything will work out fine.
440957
The fact that you have that feeling is a indication that something is wrong and you two need to talk about it.
579441
There are dozens of various illness and nerve issues.\nOften it can merely be loss of muscle tone causing some.