yeah that's weird they don't want to do x-rays....
I had a horse that broke his pedal bone in three spots (idiot kicked a fence while on a bucking tangent). The first vet that I had come out swore up and down he smelled puss and dug around in the horses foot (later causing infection) looking for an abcess- even though I told him that I had seen the incident and clearly the horse had broken something. x rays (not digital) were taken confirming at least a fractured pedal bone. We were then refered to and actual equine vet.
Off to the second vet we went. Digital x-rays were taken showing two clear breaks and one fracture. Horse was cleaned, put in a cast and put on a HEAVY dose antibiotics due to the first vets digging and the fact that with the cast we wouldnt be able to clean it out. plus were were sent home with a giant container of cosequan (to hopefully head off arthritis) Three weeks later cast was removed, new X-rays were taken, horse showed marked improvement so then he was put in a backwards bar shoe with a pad that we could remove with bolts (he was still kind of dealing with drainage/slight infection from the digging so we had to change gauze once a day and keep it clean.) His other hind foot was shod for support as he was supporting himself with it. after the pad could be removed for good, the shoer would put a substance all over his frog that would dry hard for added support..
long story short, to the vets amazement the horse actually made a recovery. and like said above, he spent a year on stall rest/ small pen turn out with short walks thrown in.
Now this was my x husbands horse, that he never rode or played with because he was a broncy sucker (not mean per say, but you never knew if he was going to dump you on a ride- NOT a reliable horse by any means). By the end of it :vet, farrier, medicines, we had well over $2500 into that horses recovery. Im sickened we didn't just put him down. We ended up selling him at auction to recoup some costs shortly after he was declared sound...I have no idea where he went or if he had long term soundness issues.
My advice to you:
Assess this horses value to you, because this will be an expensive and time consuming no garantees endeavor if her pedal bone is in fact fractured. If the horse doesn't mean a lot to you, It may be in your best interest to just put her down.
If she means a lot and you are willing to do what it takes and or keep her if if it doesn't work out, FIND A NEW VET that specializes in horses, as crummy vet care can jeapordize any chance this horse has of becoming sound again.
best of luck!