Do I need to seek legal advice?

I am disabled and work part time. I have been with the company for 5 years. They knew I was disabled when they hired me. In the last 6 months, I started to have back problems. I thought it was connected to my other issues. I went to the doc on Oct.15,2008 and had an x-ray done, then 2 days later I had an MRI done. After the tests came back, I found out I have 2 bulging disc's and Spinal Stinosis. I was sent to a specialists, and was taken off of work. I was given 2 options, surgery or injections. I took the injections. I have never had back problems in all of my life till the last 6 months. I did not file a claim through work. My doc gave me permission to go back to work, but SEDENTARY only. I was cooking and putting stock away, and many other things before I had gotten injured. Work agreed to let me come back doing some office work. Then they took it away from me and gave it to the owner's daughter. I am now back in the kitchen, cleaning ovens, clearing tables, washing tables, setting up tables, washing dishes, bending over. I am not doing anything the doc has ordered as far as work goes. I was given an ultimatum on Nov.13-2008 either I come to work or I can resign. And that came from the owner herself. I have talked to friends, family, and other legal people, and they all suggested that I talk to an attorney about my rights in the work force because I am legally disabled. I need some advice. I am in Wisconsin.Do I need to seek legal advice?
You need advice? After asking friends, family, and legal people who all told you to get an attorney? Follow that advice. There are many who specialize in disability.