My new boss has taken away all acomodations regarding my FMLA

I have been on FMLA since 2008 for acute rheumatoid arthritis. Since this time I have been allowed to work from home on sick days and make up any time in the office at my discretion. My work has never suffered and I have always received excellent reviews. 2 months ago, we got a new boss in my department. The first week she met with me and asked me many questions about my treatments and meds and I kept it very brief, due to my not feeling comfortable in discussing it with her. Her 4th week there she asked if I had time to meet with HR regarding my FMLA. In that meeting, which I did not feel she should have attended, HR just wanted to give me my recertification papers. They aksed my new boss if she had any questions, and she pulled out her list. She stated that 1)I could no longer work from home. 2)I could not make up time anymore and had to work 8-5 "like everyone else" and 3)she wanted 30 days notice prior to my taking off. HR intervened and stated that I could not give notice and that my leave was intermittent. A week later, we had a snow storm and none of the three employees showed up for work. My new boss emailed me and asked that I do all three jobs from home since I was the only one with home access. I happily did so. Two days later, I was out sick and offered to work from home and she stated that it was not allowed. She and I do not speak at all and there is great tension between us. I fear now that my first review with her will be negative and she is trying to get rid of me....what can I do??