Last night, my hearing in my left ear started sounding tinny/metallic/synthesized. it's also a bit clogged. i'm getting over a cold. just wait it out?

Eustachian tube dysf: It is not uncommon for one or both ears to develop clogged sensation with changes in hearing from a cold. Often the eustachian tube(s) (connecting throat to ears) become inflamed and clamp down causing above symptoms, similar to sensation when your ears pop while flying. U can try a decongestant, but often tincture of time resolves symptoms. Seek medical attention if persists > 2wks or if pain.