Fullness in the Ears
There are several causes of fullness in the ears. However, when it occurs with other symptoms of sinus headaches, it can be a significant pointer. Note that fullness in the ears may be due to a severe infection [3] of the bone behind the ear, which should be treated.
The conventional fullness in the ear resolves after a few days, but it’s essential to consult the doctor to know the root cause. If it occurs alongside symptoms like a runny nose or pain when leaning forward, it could signify a significant sign of a sinus headache that demands quick treatment.