That's good; hearing loss that follows a sudden change in pressure or loud noise can cause temporary or permanent hearing loss.
Just a few more questions. Certain medications can cause hearing loss. In fact, about 5% of hearing loss is related to exposure to a medication or toxin. For example, certain antibiotics, chemotherapy, high-dose aspirin, and diuretic medications ("water pills" such as furosemide) may cause hearing loss. Fortunately, recognition of the problem and stopping the medicine can prevent permanent hearing loss.
Did you start taking any new medications shortly before the onset of hearing loss?