According the name sudden hearing loss it is simple that hearing loss impairement occure suddenly or with a less amount of time and affect inner ear. the effect of this is from mild to severe and consciously become permanent condition.it may be occuring togather with tinnitus. I personally suggest to you should consult with an audiologist as soon as possible.For more information related to hearing loss impairment you can visit:https://goo.gl/H4JCjW