HI everybody, i was using jinotropin and then serono. I used to have the case, with the sterile water in a little bottle and the gh in the other bottles. Now, i can only get my hands on the norditropin pen universal , each pen has almost 70 or 60 iu.since its now coming for a doctor. Any difference? When i was injecting in the jinotropin using a normal insulin needle i would feel a small bump in the injection area, but with the norditropin pen, i cant seem to feel the bump area. weird?