How can my employer count FMLA days from my surgery back in 2008 when I was told to conduct company business during my leave.

My District manager sent me a break down of my FMLA leave when I received it I was confused on the end date of my 12 weeks, I called my HR department in our headquarters and questioned the end date and was told I used 30 days back in August 2008 when I was in the hospital. I asked how is it these days are being counted when I worked the entire time at my companies request, in fear of being terminated I did what they all asked of me. I did not even receive this notice from my company headquarters I heard about it through my District Manager.
can my employer count these days against my FMLA leave? I'm still employed with this company I just want to know my rights in this situation. - Is this your question? Add additional information