I have hyperacusis, which is the polar opposite of your condition. It's sensitivity to high frequencies that can cause migraine type pain.
Hyperacusis doesn't just manifest for high frequencies, as I unfortunately know from experience. In addition to tinnitus in my right ear (cochlear infection some years back), I have intermittent hyperacusis, which is apparently quite odd (but so am I). Doesn't normally bother me but when it does I can't listen to music (or anything else for that matter) above normal speech loudness without causing pain. Sucks, but nothing near the order magnitude of the deafness the OP is afflicted with - All my sympathies on that ill fortune. 🙁
Getting old is not for the faint of heart apparently...