Hello @omcclellan, Welcome to Connect, an online community where patients and caregivers share their experiences, find support and exchange information with others. Listed below are three previous discussions that you might find of interest. You may want to scroll through the posts to find information and suggestions.
– rapid thumping sound in left ear: https://connect.mayoclinic.org/discussion/rapid-thumping-sound-in-left-ear/
– Thumping in right ear, only triggered by sound https://connect.mayoclinic.org/discussion/thumping-in-right-ear-only-triggered-by-sound/
– Pulsatile tinnitus https://connect.mayoclinic.org/discussion/pulsatile-tinnitus-1/

Have you discussed your symptoms with your doctor or an ENT specialist?