I would suggest you call Enliven and talk to one of the on call nurses. They might have a suggestion for you to deal with the reaction you had. It might be as simple as taking an antihistamine.
You may find that your body reacts differently each week, and sometimes it could be to do with where you inject. My sweetie often injects in the thigh, but he's noticed that when he does his ab or arm, he actually has a better response. I rarely inject my thigh because it just hurts too darned much, so I have no basis for comparison. Both of us have found that some weeks it lasts longer than others. In fact, I've had a few weeks when I've felt so good that I've forgotten my injection until the day after I'm supposed to take it!! Then, other weeks, it runs out a day or so early. Still, it's never as bad as it was pre-biologics.
I hope the positive results continue.
Hugs,