Sometimes when I open my mouth I hear a lot of grinding noise on the left side. Also experiment randomly severe headaches and neck on the right side. Could it be TMJ syndrome?
All these symptoms could be caused both by a dysfunction of the temporomandibular joint as a transient myeloproliferative disorder. You need to go to a dentist who has a lot of experience trying bites. It could get worse. Headaches may also increase gradually. This is one of the most painful problems I see in the query.