Sinus Medication Solution

Just got over a 10 day cold, produced tons of mucus/drainage/sore throat. Now two days in a row I’ve gotten really bad headaches, worsened when/if I bend forward or down. My nose isn’t runny anymore except at night. I wonder if it is possible to have a sinus infection but not keep a runny nose.
No insurance, so only going to the dr if ABSOLUTELY necassary. Thanks for the help.

Sudafed, 120mg….non-drowsy, 12-hr.
I don’t mess around!

Is this a result of the drainage or what? My ears weren’t stuffed until I went into the doctor and got antibiotics for an apparent sinus infection. Experience would be helpful. Or some knowledge. Thanks.

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I have a bacteria infection in my sinus cavities, and I’ve noticed the past few days that my hearing has been very sensitive. Even my own voice sounds too loud when I talking in a regular tone.
Is this normal?