Unwanted ear part wiggling

Hi!
Many times a day a part of my right ear (only the right ear) starts to wiggle - it''s not at specific times at the day, it starts and goes away only to reappear later.

This is really annoying when I am going to sleep (I have tried to sleep on both sides to see if that has an effect, but doesn''t seem like it does).

I''m a very inactive person, since my education does not require me to attend lessons that often (3 times a week) - and in fact I sit down alot.

I do eat different food and very rarely junk food.
I have not been found allergic to anything in my twenty years.

Any help would be very welcome!