2nd MRI results are in!
I have not had a new bleed! The neurosurgeon explained that apparently between the reappearance of original symptoms and new ones like the pulsing pressure or throb in the roof of my mouth are not uncommon side effects or symptoms of living with a condition like this. It is supposed that the surrounding brainstem tissue can be aggravated on an ongoing basis.
What was not explained in detail but read elsewhere is that cavernous angiomas are leaky structures so its possible to have ongoing leaking and hemosiderin deposits aggravating the neural tissue and sometimes causing permanent damage. This activity in the brainstem can be particularly sensitive because of the eloquent (important) location amplifying the effects of even small bleeding.