Common symptoms include: 1  feeling very tired all the time (fatigue) 2  weight loss. 3  weakness. 4  joint pain. 5  in men, an inability to get or maintain an erection (erectile dysfunction) 6  in women, irregular periods or absent periods.
While both programs supplement the income of individuals who are unable to work due to a medical disability such as blindness, SSDI and SSI serve two distinct populations. The main difference between SSDI and SSI is eligibility. SSDI is available to those who have paid into the system through taxable income. SSI, on the other hand, serves as a safety net for those who do not qualify for SSDI and have limited means.
The Social Security Administration (SSA) offers two types of disability benefits: Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI).