[JanJam]

I agree with the others, she really does need to be seen by a vet. This isn't optional, it's not a mere "good idea", it's an absolute MUST.

Not eating can indicate a serious problem. I have had piggies not eat before, been to the vets, given treatment and they have been fine. The vet visit can save her life.

I don't know where you're located but in the UK we have the PDSA, many people who cannot afford the full vets bills take their pets there. I believe there may be something in the RCVS code which states that if treatment cannot be paid for in full then something has to be worked out for the payment and treatment still given. If you don't ask you will never know.