[shrimants]

Im kind of sick currently, and since ive been getting better ive noticed that my left ear gets this crackly foamy sound sometimes. It used to happen when I played trumpet if I hit notes that were too high. I can only assume it has something to do with pressure in the sinus cavities.
 
It sounds like theres water in my ear or something and its foaming up, and occasionally i the sound actually starts crackling. I know its not the headphones because even when I dont have music in the left ear the ear does that (ie music in right ear, not left)....any ideas?

 

[Uncle Erik]

When was the last time you had your ears cleaned? I'm not a medical doctor, but it could be a wax buildup. Why don't you get your ears checked by a professional? That isn't normal and your hearing is very important.