An appetite stimulant might make him eat more, but it will not solve any other underlying issue. DMG is an immune support supplement, which in his case will not hurt him, but may not be enough to reverse things.
A board-certified veterinary specialist has completed additional training in a specific area of veterinary medicine and passed an exam that evaluates their knowledge and skills in that specialty area. But I understand if you can't afford a specialist. It sounds like the vet you recently saw took Bruce's condition more seriously since you said she was much more thorough and ran bloodwork. Since finances are a concern can you ask the regular vet to contact the specialty vet and ask them if there's anything else they can do to help Bruce?She said normally they'd refer to specialist vets
I can't afford to
Plus what would they test for a normal vets can't
Ditto!You are doing all you can for him. Hopefully the FeLv test and the scan will tell them something. You are feeding him six meals a day and he is still losing weight. There is a reason for that.