I think there were some of our members who had those symptoms.
You can try searching the POIS thread at the nsf forum:
In the Google search box, type
whatever-it-is-you're-interested-in-finding-out[space]POIS[space]site:http://thenakedscientists.com/
Ah, I found a couple results searching this forum by typing this into google:
ear ringing POIS site:http://poiscenter.com/forums/index.php
I found very interesting information on the link below, once you open it you can see many sexual topics on the left side, for instance now I have a problem of ear ringing and there is a topic there for that and is related directly to orgasm. in the bottom of the page there are some contacts for consultation and Dr. Richards offers some treatments with suplements depending on the case. I hope that this inormation can help.
Thanks,
Mario
http://cure-erectile-dysfunction.org/histamine-and-sexual-exhaustion%20
The other thing I found was that Daveman said he had some ear ringing, but apparently it was only once when he had a cold.
It seems the default search here isn't that bad either. In the past it has missed some things I think which is why I tried a google search of this site instead.