Does a sinus also affect our ears?

Who treats most Sinus cases, ENT specialists. Meaning ear, nose and throat are connected.

Google for Sinus Cavities images. You will find a liquid filling on the face near the eyes, ear, nose and throat. So again it proves they are connected and it affects.

I had sinus problems and had severe ear pains. No cold or head ache. Yes, they are connected.