Double the fun but double the medical expenses

My twin sister and I are facing a challenging summer with significant medical expenses. Our insurance doesn't cover everything, so we're reaching out for support. We're dealing with neurofibromatosis, which requires regular appointments to monitor tumor growth, including brain tumors. We're also undergoing various treatments like MRIs, surgeries to remove other tumors, physical therapy, and more. Any help would be greatly appreciated, as this is putting a strain on our family.