I lost my job 4 months ago. I got tired of sitting at home and took a job which was not categorized as "suitable work". I was trying to make an attempt to start receiving an income. After 4 days on the job, I experienced pain from an injury which did not occur on the job. My doctor provided a statement and advised me to quit and continue searching for "suitable work". Can I be denied unemployment benefits? How can I be penalized for a failed attempt to return to work?