Help my little girl get the answers she needs

Please help me get my little girl the testing she needs. Sandy has been finicky with her food her whole life, however, starting April 2025 she hasn't been able to sustain an appetite without the help of appetite stimulants. After several rounds of bloodwork and an ultrasound we found inflammation which could be anything from a food allergy, gastrointestinal disease, or possibly small cell lymphoma. The only way to get a definitive diagnosis is through a biopsy, and I need help with the costs.

Sandy means the entire world to me and more. I always joke I hit the hinge jackpot in 2021, I met the love of my life, and my boyfriend. Sandy is a Queens girl, she was my boyfriend and his roommate's cat. When I met her she was this tiny girl who was actually carrying 3 babies! We quickly formed a strong bond. I've always been very maternal and love cats, a lot. When my boyfriend and his roommate decided to live separately, they wanted to give Sandy to me where they knew we'd both be happiest. Now she's in her Jersey girl era!

Sandy's hobbies include chirping at birdies, staring out the window, and yowling really loud late at night. If you're lucky, sometimes she drops off one of her toys during her yowling episodes. She's a high energy girl with lots of personality. She's sweet, funny, and she's always the life of the party (when she's brave enough to join it). Lately, however, she hasn't been fully herself. We hope getting the answers we need will help us determine the best treatment and I can get my weird little girl fully back.

I don't think calling me a crazy cat lady paints the whole picture, I might be something even crazier. I've struggled with mental health my whole life, and Sandy has been my life's comedic relief. My sunshine on a cloudy day. She's my best bud, my little girl. I can't imagine this life without her and I want to get her so badly the care she needs. Any help would be greatly greatly appreciated.