Mastoiditis and 'referred' symptoms

Hi All,

My question to the group is:  Can Mastoiditis cause 'referred' symptoms like Eustachian Dysfunction, headache, dizziness, fatigue, and malaise?  The area behind my ear is NOT tender, although the cartilage part of the affected ear canal does very occasionally feel a slight sharp pain and/or burning sensation.

Here is some background:

I suffered Otitis Media in late September, which was temporarily controlled by Amoxicillin. The Otitis returned in September, and I had to undergo a second round of antibiotics (Ciprofloxacin) , before it was finally brought under control.  However, ever since then I have been left with persistent Eustachian Tube Dysfunction, daily headaches (pressure band across forehead and temples), dizziness, and general malaise and fatigue, with no sign of arriving at a definitive diagnosis.  

An ENT I visited initially suspected Sinusitis, and I accordingly had a CT scan done. This came back normal, except for 'very mild maxillary thickening'.  Plus I've never had any nasal symptoms like congestion, runny nose etc. The ENT prescribed me two rounds of Azythromycin (i.e.2 x 6-paks), which only helped for 2-3 days at the end of each round, and then my symptoms came right back..

Recently I visited an Oto-Neurologist, who said my initial Otitis Media could have left me with Mastoiditis, which is hard to cure using oral antibiotics. I am now scheduled for a brain MRI to see if my problem is Mastoiditis.

thanks!

Akshay