Could be a build up inside the ear canal.
I experience build up regularly. It is disgusting but seems that when I get anxious or worried, it happens more often.
A doctor's office (or a clinic) can easily tell you if this is the case. Most will flush it out if that is the problem. If this is the case, and it continues, there are over the counter drops and little bulbs to flush out yourself.
Whatever, it ends up being, I would suggest a medical pro is the best way to find out.
Good luck,
Joanna
