If you'ld earned enough work credits to be eligible for SSDI, you getting that would have absolutely nothing to do with your mother's wealth . . . or even your own wealth, if you had a fortune.

SSI is another story. If you are too disabled to worK, you should apply for it. You would have to report your living situation, and I'm not sure how they would factor in the support from your mom. As far as help with medications, you need to try to get on Medicaid.

In deciding what to apply for, do not refrain from applying for something because you want to leave the money there for someone harder up than you. That's not how it works. You won't be helping some needy person have a better chance of getting SSI because you didn't go after it for yourself. Your decisions for what to go after should be based on what you might qualify for. Talk to a disability lawyer for a good assessment of your likelihood of getting SSI.