Second day after Hizentra

I woke up with a headache again this morning, and I realized that one reason I've been having such a rough time with this first SubQ treatment is that I didn't take it seriously like I do the IVIG. I had so ingrained myself with the idea that there are fewer side effects from it that I didn't even think to hydrate in advance! I realize now that I need to treat SubQ with more respect, just like I did my IVIG treatments. I need to hydrate the day before, avoid caffeine the day of, and hydrate they day of (and after too).

I have felt very tired all day with a strong desire to sleep. I wonder how long it takes to feel the increased energy that SubQ is supposed to provide? I just took it easy and stayed in bed all day. I hope that I'll be able to work tomorrow, and that I don't wake up with the headache.

Aside from the headache and fatigue, the swelling has gone down on my belly significantly. I almost look like myself again! The knots are about 1/3 the size they were after the infusion on Friday. I used to wonder what people meant when they talked about "knots" in regards to SubQ, and now I know! They are large welts (about 3" in diameter) that are hard to the touch, and painful too. They literally feel like a hard, knotted-up muscle, except they are more painful than that. I don't know whether they are caused by the fluid from the infusion building up under the skin, or if they are actually a histamine reaction. I need to do more research on that and find out.

Later the same day...
I feel like I might be sick. The question is, is it CVID, a reaction to the Hizentra, or am I actually getting sick? My legs feel like rubber and I have a "sick taste" in my throat.