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My oldest son is deaf so I've dealt with hearing loss, tests, hearing aids, research, etc for 21+ years.
In a standard hearing test (un-aided/no hearing aid), a reading of 70 is a severe hearing loss. The reading basically is your threshold, a threshold being the smallest of detectable sound.
For people with "normal" hearing, the threshold is 35db, basically conversational speech.
A hearing aid would be a huge benefit to you with this type of loss. Did your Dr. say whether it was a conductive loss or a sensory-neural loss? One being inner ear and the other being nerve.
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