Mucus stuck in ear?

It is probably not mucus that's in your ear. I expect you have been blowing your nose a lot lately and you may have affected your eustachian tube and internal pressure. You do not necessarily have otitis media. Give it more time. If you still have your ear symptoms 7 days from, report this to your doctor.

I have the same problem, I raise and lower my head on the pillow, it sounds like my ear is plugged and unplugged. I also have clicking sounds, and sometimes sharp pains. The Dr. just wants to throw pills at me, which have not did a tinkers dam worth of good. I've also lost a lot of my hearing especially out of the ear with the clicking. I think it is mucus build up, which I also have a lot in my throat I can never get rid of. Like a blob, I can't get out. Maybe it is a sinus infection, but the Dr. doesn't know enough to take a ex-ray, just pop some worthless pills...Grrrrrr

It is probably still clogged from the cold you had. Give it a little time. If you still feel this way in a week you should see an Ear, Nose & Throat doctor.