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 basics of SSI. The Social Security Administration runs the Supplemental Security Income program, which is designed to meet the financial needs of certain people with limited income and resources. SSI pays monthly benefits to those who are age 65 or older, or who are disabled or blind.