It is called tinnitus, which can have many causes.
It is mandatory that you see an ear nose and throat doctor to get your hearing checked.
The most common cause of this is damage to the hearing.
Without fail, that doctor must be consulted.
Other causes are inner ear problems, other ear problems, tumor of the haring nerve, blood vessel problems, TMJ, cervical spine disease, anxiety, meniere's disease, and so on.
ENT is next.
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could this problem be Pulsatile Tinnitus ?