Please help Suzuki (sick leopard gecko)

About a month ago Suzuki wasn't looking like herself she was being very lethargic which is abnormal for her because she is always full of energy. Then I noticed her belly. The left side of her body was swollen and looked bruised (blue and purple) at first I was so worried she had gotten hurt and was bruised. She has been going to the vet for three weeks and finally I found a specialist. She got all the right tests done and they still can't pin point exactly whats wrong. She still needs a few more tests. But they are getting more and more expensive and I can't keep up financially with the costs. The doctor has already prescribed me three medicines, an antibiotic, a laxative, and an assistant feeding powder. I can't afford the tests much less the medication. I have had Suzuki since she was three months old. I love my pet and I hate to watch her go through so many test and feel the pain of being sick. she's been in the emergency clinic for three days now and I miss her so much. Any donation to help out my little leopard gecko would be amazing. Thank you for taking the time to read this and I appreciate any donation.