Biologic Hangover
This is a question I get in my support groups a lot!
Why do I feel so tired after taking my biologic?
A very fair question. We call it the "Humira Hangover" (even if you aren't using Humira, the alliteration is important)
It can be different for everyone, but typically, when starting out with a new biologic treatment (Humira, Enbrel, Cosentyx, etc.) you will feel a bit tired to freaking exhausted a day or two after.
Usually this will only last the first few months after starting. Maybe longer or shorter, but it seems to happen to everyone.
For me, I'm exhausted the day of injection, so I try to do my shot at night so it will help me sleep.
Again, it is not an exact science, but, yes, for those who are wondering.. it is a totally normal part of being a biologic user.