If there is, it would likely be through Medicaid and a very small amount. Aid and Attendance through the VA may be an option. Call your Area Agency on Aging to learn about programs that are available in Tennessee.
Tennessee’s Medicaid program TennCare does have a program but if you are moms guardian or POA you aren’t eligible for it. Also your profile says you are on SS disability so I dont know if you can be paid to take care of her since you are unable to work....