Started Humira Monday- I can finally close my hands to make a fist but I am impossibly tired!

Does Humira make anyone else SUPER tired? It's only been a few days, and it does seem to be getting better, but the first couple I could barely keep my eyes open during the middle of the day. Maybe just an initial shock to my immune system? So far everything else is good- my hands actually feel pretty good. I constantly open and close my hands just because I can't believe I can do it for the first time in years. This is the first biologic I've tried (I've had pretty much every other suggested drug) so I'm really hoping it works for me without any of the terrifying side effects. I just wanted to vent here a little and see if anyone else noticed that it made them tired, especially on days following your injection. Thanks so much!