I am confused.

I had a phone appointment with Social Security this morning, and was told that since 07/14 I have qualified for SSDI (instead of the SSI). I was told that I would still have MA, but there are benefits to me being on SSDI.

I tried to get my examiner to elaborate and explain what she was saying, but she could not put what she was saying in other terms.... and I am confused.

Apparently, I need to make more than $500/month for 8 months, ant then the SSDI will begin. What?? She also stated that my SSI would continue, along with the SSDI, but that it would be affected. What in the world are they trying to convey to me? It makes no sense to me. I cannot understand the benefit/s and I am worried that my SSI will end soon.

Can anyone help me interpret what this Social Security employee was trying to get across to me, please? In advance, thank you very much!