Hi!
So the -1.25Ds that you are currently using, are for far distance. While the testing has revealed that adding +0.75Ds for near work, will improve the quality of your near vision. So if the testing is done correctly, yes you may need an "Addition" of +0.75Ds for near work.
Progressive lenses are a very good option, especially for those who have near, far as well as intermediate(eg. computer screens) work. They take about 10-15 days to get used to.
Thank you.
Next Steps
Get proper eye testing done with any optometrist/ophthalmologist.