I was rate by the VA 40%. 30% for my MS and 10% for nere damage in my foot and 10% for my knee. now please explain the VAs math 30+10+10= 50 not 40. Anyway it took me 7 years any plenty of hospital stays to getting re-evaluate and receiving a rating of 70%. but once again with VA math not real math. This is what I mean I already had 40% and then I received 30% for Migraine cuased by chronic steroid use,10% for Neuropathy right upper extremity,10%right lower extremity,and 10% for GERD seondary to chronic steroid use. How does this equal 70% CAN SOMEONE PLEASE EXPLAIN THIS!!!!!!!