Hearing loss that comes and goes may be Meniere's disease. Have you been tested for that?
they do have a implant aid that picks up vibrations to your good ear. it evens your hearing out-
i just couldnt do it- but its very small and gos just under the skin- wished i could think of the name-
but there are options- wish you well!! tick
Excellent point, rumpled. Yes, Sarah, that (Meniere's) is definitely something that could be involved, and for which you need to be checked by competent, informed medical folks.
Tick--perhaps you are thinking of a Baha (bone-anchored hearing aid). This is only for people with severe or total hearing loss on one side but good hearing on the other (also for people with ear malformations, etc.).
Sarah: I second what Pastor Dan said--talk with an audiologist to see if a hearing aid might help you. For intermittent hearing problems, I would think not, but I'm no expert. Hearing aids are very expensive and usually not covered by insurance in the US; not sure about the UK.
Nancy (who just found out today that my Baha implant site needs a "revision" surgery, yuck!)