My dad died from exposer to agent orange and I have been unhealthy my whole life is there a claim I can file?

Your father's Agent Orange exposure is unlikely to affect any claim you may have.  To be disabled, you must be unable to work (8 hours/day - 5 days/week) for 12 months or more due to a medical condition (physical and/or mental). In order to prove your disability, ongoing medical treatment will be necessary to verify your claim.  To apply, go to https://secure.ssa.gov/iCLM/dib or go to your local office in person https://secure.ssa.gov/ICON/main.jsp or call Toll-Free: 1-800-772-1213.  It is free to apply.