Hi guys got a big problem need some urgent advice. Been usin Slin now 8iu for about 3 weeks(not the first time) but post workout yesterday i noticed that the vials of Novarapid i am using are two different dates with the one ive been usin out of date. Both were in the same box so the prick i got them off either swapped or hasent checked and as they were marked sept 07 i didnt think to check until i noticed by chance yesterday. The vial is still crystal clear no clouding but what damage could this have done to me or being out of date does this just mean it doesnt work. No feelings of hypo or nausia over the last few weeks so i had no cause to suspect anything just a bit worried. I am feeling ok and have gained a couple of pounds(probably fat from the dex) but would like to stay alive....any advice please.