Carotid ultrasound for tinnitus. Results normal part of aging?

This US was ordered by my ENT for tinnitus. . He reviewed
it and texted me today that there are no alarming issues noted. I did reply that I was concerned about the stenosis and the artheromateous disease,.
Should I be concerned that he is not concerned or is this a normal part of aging?
Narrative & Impression
General: A bilateral carotid duplex was performed.
Previous: No previous study.
Right: RIGHT: Doppler flow velocity represents ICA stenosis of 1-39%. Heterogeneous
plaque noted.
Proximal ICA PSV/EDV (highest) = 112/26.3cm/s
ICA/CCA ratio = 0.9
Antegrade vertebral artery flow noted.
Left: LEFT: Doppler flow velocity represents ICA stenosis of 1-39%. Heterogeneous
calcified plaque noted.
Mid ICA PSV/EDV (highest) = 106/31.4cm/s
ICA/CCA ratio = 1.0
Antegrade vertebral artery flow noted.
Conclusions
1. RIGHT ICA: 1-39% ICA stenosis - (Mild atheromatous disease).
2. LEFT ICA: 1-39% ICA stenosis - (Mild atheromatous disease).
3. Antegrade vertebral artery flow noted bilaterally.