Can you re open a lawsuit case which you received a settlement for?:
Unfortunately, no you cannot re-open such a case, not without new evidence. The best you can do is go after your lawyer, but it probably won't help a whole lot.  Very valuable lesson is to be learned here- you were so young when it happened- you body had many changes to go through yet and with Firestone's record, you should have had a clause put in the settlement (or not settled at all) that future consequences of the accident could be claimed.