Is ear fullness, pain and pressure from tmj?

Maybe: The temporomandibular joint, or tmj, is immediately adjacent to and intimately associated with the ear. So, yes, fullness, pain and ear pressure may be due to temporomandibular disorders (tmd). However, there are also other things that can cause ear symptoms. Only a doctor can tell the difference between a true ear problem and a TMJ problem. Sounds like you need a good ear examination!

It can be: Tmj is the great impostor! people make the medical rounds seeking solutions for TMJ symptoms. First, rule out ENT issues. By all'means, TMJ and ear symptoms are commonly related.

Could be: It could be but your first exam should be with an ENT doctor to rule out ear issues.

Pain and dysfunction: If the tmj/tmd issues last for awhile, some symptoms can affect the ear (s) in many ways. You may develop ringing in the ears; earaches, popping-grating-clicking that is heard constantly in the ears; roaring muffled sounds; hearing loss; on and on. It is better to see an ENT first if you have ear symptoms to rule out it being the ears as the source of the problem.

TMJ symptoms, or?: Yes common TMJ symptoms. Or, you could have a primary ear problem. I'd start with an exam by ENT doc.