help please ins has lost my file

hello i hope someone can help me i have been on the phone all day with ins. I came here with my mother and stepfather in 1958 and i was 5 years old i have worked gone to school here since then and i am now 53.
anyway i have lung cancer and copd and decided to try and get my disability i was approved by social security for the medical part but now they want me to prove i am here in the us legally and they stated that since 911 their policy has changed and they do not keep that information in their system since when i got my ss card was so long ago.
so anyway i called ins because when i went to look for my permanent resident card it somehow got mutilated and i called them to get the a number since i could not read it on my card. Well they informed me they have no record of me and possibly my records have been lost. They said for me to fill out a form to get a new permanent residency card and start like i just came here. This process takes a long time and i do not have long to live as 2 years is the time the doctors have given me and i am on Spam 24hrs a day so it is hard for me to even go to the field office. I do not understand how they can just lose someones records is there anything i can do. I feel that maybe they did not know what they were doing when they were looking up the information maybe. Would the portugese consulate in washington dc have any info maybe i have just been crying and so upset all evening and do not know what to do any suggestions would be so appreciated

thank you

You're probably not going to get an answer on this forum as it's for British immigration issues.

Try this section of the forum:
http://www.immigrationboards.com/viewforum.php?f=24

Or also:
http://britishexpats.com/forum/forumdisplay.php?f=34


You should also contact either a US immigration attorney and/or your Congressman.

thank you did not realize i had posted to the wrong forum is there a way to delete this one so i can post in the correct one?