I am so glad the Humira is starting to work for you. Congrats! The injections will get easier and easier I think. I find the belly ones hurt less for me for some reason. I always dread the thigh ones. If I bruise, it is always on the thigh ones. I also get the biggest red hot reactions on the thighs too.
Sorry I don't have any good suggestions or comments with regard to your tests. I hope all goes well.