Stress over Guardian caused my heart attack

All of a sudden (after 12 years), Guardian LTD is sending more and more paperwork – especially after someone stole my identity and filed taxes in my name. The IRS knows who did this and so does guardian. However, for the last two years I’ve had a few doctors that are refusing to help me and fill out the physicians forms. This happened in Washington state and now in Florida. I started with STD in 2004 and LTD in 2005. I have SSDI since 2007. Doctors have already deemed me permanently disabled. This is starting to cause much stress on me. I went the the Rheumatology doctor today and they flat out said they won’t and can’t fill the forms out. I’m perplexed because the retired doctor I saw in the same office had no issue in filling the forms out. I’m terrified they’ll cut me off. I just had a heart attack induced by stress of relocating to receive better care. I’m sending clinical notes and they were aware of my move, but I had two heart attacks (one in August and one just a couple weeks ago fleeing Irma). Please help.