Hello and hope you are doing well.
In an entity called noise induced hearing loss, the hearing loss is due to exposure to either a sudden, loud noise or exposure to loud noises for a period of time. A dangerous sound is anything that is 85 dB or higher. Your hearing loss could have been due to this. You will need to consult your primary care physician for further evaluation, who may then refer you to an ENT specialist. An ENT examination, auditory brain stem response (ABR), a computerized test of the hearing nerves and brain pathways and CT/MRI brain may be needed to diagnose the cause for deafness.
Hope this helped and do keep us posted.
Have seen an ENT Specialist yet?