I decided to try a different supplier than usual, and I received 10 100mcg vials instead of my usual 1000 mcg. Also, this new supplier sends only BW and not the usual AA and NaCl that i'm used to. Anyway, I looked at the vial of BW and it seems to have little particles of something floating around in it. I'm not sure what they are. There aren't a lot, just a few tiny little ones, but I think that I shouldn't use it--I wouldn't want to inject those right? Would it be bad to use the vial of NaCl I have and just dilute each 100 mcg vial with the NaCl, or do I need the BW to sterilize it? What would you guys advise?