How anxious have you been this past week? If it's alot then that would make you tired too, suffering from HA makes you extremely aware of your body so that the smallest of aches and pains feel 10x worse, and anxiety causes tension in muscles.
I'm not a doctor ofcourse but I have been exactly what you have been through, the twitches, the aches, the pains, the weakness that is there but you can still lift things, the arms and legs feeling odd, kind of stiff feeling, I don't think there is anything wrong with you besides HA, but go and see your doctor and be honest about your fears, you'll be ok