I recently had my appendix removed (3 weeks ago) I ended up getting a abscess that they had to put a drain in 2 days ago. I thought I would be feeling better by today, however I am really weak and have back pain. Is this normal? I don t seem to have a fever, and my drain seems to be working properly.
If you are still having fever that means you are not completely out of infection.  So I would suggest you to continue antibiotics.  Once fever will suicide, you will feel more strength.  If you feel deny Chat Doctor.  For back pain, apply diclofenac ointment.  I think it is related to fever only.