search cold shower as a hydrotherapy. It is not specific for your problem. It might help you indirectly.Googlee cold shower therapy or hydrotherapy. You may also try female Deer Exercise.
Can you literally not feel anything? If you're numb, it could be nerve related. If you can, see a neurologist. They're at least usually good at listening, and they're the right people to see for nerve problems (I know you can't afford to right now, but it's something to try for). A google search turned up this page http://www.wisegeek.com/what-is-the-perineal-nerve.htm on the perineal nerve, which innervates parts of the genitalia.
If it is nerve damage, you might only be able to wait and see if the nerve grows back. Again, I would try seeing a neurologist. You should check whether your heart meds could be causing issues, but that probably isn't it. Sexual side effects of SSRIs should go away once you stop taking them.
That's all I've got. I hope you find some relief from this condition.
Hi Sun, OK try these for starters if you have not already done so, Google antidepresents side effects for sex in women, and antidepresents and depo shot, now if you cant find an answer there, try this, its dodson and ross, dodson is Dr Betty Dodson, she takes life one orgasm at a time, she runs life class's for women on masturbating and how to orgasm, now this should give you an idea on her, now she may be able to help you or shed some light on just were you problem is or lies, you can post to her for advice or just wear to look for some, if you give her all the facts.
Good Luck