Hi Bea, just a few ideas, one already mentioned above

So, are you seeing a gynae-physio? Or at least one who specialises in women's health? It can make a big difference. Also, have you tried a pessary? I know a fair few women who found the pelvic floor exercises didn't have any impact but doing them once fitted with a pessary (basically a plastic insert you put in your vagina to physically "hold up" the prolapses while you work on strengthening the muscles) made a massive difference. Even for those women it didn't work that well for, wearing the pessary gave them some relief from the "dreaded drag" as they put it.

Also, as mentioned above, some places can use a small electrical device which stimulates the muscles to contract - think like those slendertone machines for giving you great abs (could do with 3 of those for each roll and one for each handle over here ) but for the vagina. Those can be very useful for women who had severe trauma/bruising/tearing during the birthing process, because sometimes the nerves are so damaged you CAN'T do the Pelvic Floor exercises properly - the nerve doesn't tell the muscle what to do properly and doesn't tell you if it can't do it either. In those cases the damaged nerves lead to loss of muscle tone and it's a vicious circle - you can only contract the muscle as hard as the nerves will tell it to contract, and the device which contracts the muscle externally can really make a difference.

The surgical route is a last-ditch one because if it doesn't work the fact that the tissues have been sugically altered makes it even LESS likely you'll be able to cure yourself conservatively, which is probably why your physio is cautious. That isn't to say it won't work for you, just that it can be a risky path to walk. The other thing is that if you plan to go to have another baby the surgery can "un-do" and leave you with an even worse prolapse, so they tend not to want to do it until a woman has finished having kids.

I don't know how your birth went but directed pushing, forceps and ventouse deliveries and deliveries with significant episiotomies, bruising or tearing all carry higher risks of prolapse, as do epidurals given too late (so you have no sensation at all during pushing and can push so hard you damage yourself). Perhaps something in there will ring bells? I do think debriefing properly and healing from the pain and trauma of the birthing will be useful to you, even if it doesn't (it might well though) help you on your physical healing journey.

I hope you get some answers soon.

Bx