Prednisone makes our bodies metabolize sugar and carbohydrates differently making some people weight gain and experience high levels of sugar in the blood by making our bodies resistant to insulin. In this way, a person may develop diabetes. The rates of Prednisone causing this disorder are 10-24%. H.
Your ex-wife may receive Social Security Disability Income---SSDI---based on your condition, even if you are paying alimony. As with other Social Security benefits, alimony is considered unearned income and will reduce the overall amount of benefits she receives.
He'd pay less Social Security tax in the first year, and he'd earn more in the second year without paying taxes on it. This could reduce his benefits because he'd pay less total tax. Shifting income in the opposite direction, so that he paid more Social Security tax, could have the opposite impact and lead to slightly higher benefits.