As eloquent as our bodies can be when something is wrong, it's still true that we can get no end of frustration from how limited its signals can be.
After all, who hasn't gone on WebMD to check on a minor problem only to convince themselves that they have cancer 15 minutes later? And while it's both relieving and a little embarrassing to learn from the doctor that we were fine all along, it's not as if they don't know what that frustration is like themselves.
And it seems that has become all the more clear as more people receive COVID-19 vaccines. Because apparently, its side effects can look a lot like a more serious problem when it's working as intended.