Hello iam Dr Ravinder Sharma ENT surgeon. On the basis of the information provided it appears you have vocal nodule and your job as a teacher and singer is a prdisposing factor for the development of this condition. I am answering your queries pointwise
is this ear pressure/fullness a common side effect of vocal nodules?
No there is no such association. It is quite possible that you have a co existent eustachian (tube connceting ear and pharynx) tube block
Can you still have vocal nodules but not suffer from typical hoarseness? (my voice seems to get smaller and less flexible and I constantly feel discomfort when speaking). Also, was my extended singing and teaching possibly permanently damaging to my voice
Early stage of vocal nodule starts with cord oedema at the junction of anterior one third and posteior two third. At this stage it is possible to have a normal voice
do you think I will recover with two months of relative voice rest?
I would advise you for speech therapy
as vocal nodule is more because of mis use of voice . Learn the right way and I have seen cases where there has been regression in vocal nodule with speech thrapy
I hope this answers your concern
Do let me know if you have any questions