Before the website redesign, there used to be a "Things to expect" page that described some of the sensations that a user might experience when using the Aneros such as numbness along the sides of the penis or discomfort on the perineum. I haven't found this on the website but it may be helpful for some users that experience discomfort or unexpected and potentially alarming sensations.
In regards to perineum pain from the perineum tab, a link to a modifications topic would be good.
Onthepath
(Note : Underlined Text is a Hyper-Link)
Onthepath,
If you go to Softening the P-tab there is mention of the soreness factor and a link to modifications possible. This is a topic open for further expansion, as are all topics on the WIKI. Would you like to propose some wording to be included? This WIKI is intended to have members like yourself adding information all the time. We welcome all proposals and if it is appropriate we will add it in.
See Rewiring for information on those 'things to expect' that you requested.