i won my va claim for 100%unemployable but was grant for 2000 i got hurt in 93 doctor reports go back than i was 10%from 93 until 2004 claim guy told me grant my befit back to 2000 if want it to go back till 93 he can send it to washington so i toke now. can i put in a claim to goback to 93 with out losing everything.