For anyone who has not experienced this, it is similar to male impotency, however for men it usually a physical issue and the desire is still there.
For women, not only is the desire not there, it's almost an active bodily rejection. I think this is made worse by the guilt and stress you feel about the whole thing. I love my partner and I hate that I'm like this. I'm sure you do too Tinkerbell.
As I said, the 'person' needs a psychological / medical evaluation. Not a bunch of half arsed opinions / potentially useless (dangerous?) suggestions from people on a public forum.
The person can have many Zacs and still not get an answer because the simple answer is no, there is very little help out there for severe loss of libido in women, unless you know any different of course?
We went through the same problem many years ago after the birth of our first child and it was natural to think it had something to do with that but it actually turned out to be a matter of TRUST. She had in the past been badly let her down and with the birth of our first child she felt vulnerable so really it was just a case of reinforcing trust and involved both of us.
It may be conceived as embarrassing or not to be talked about but talking about it and getting the correct advice is the only way to resolve it. I do wish you the best