Flagyl and shoulders

I was prescribed this drug for C-Diff.
This is my 2nd time taking this drug for the C-Diff.
It absolutely makes me so miserable,
physically and mentally.
I feel bad all over.
It's hard to describe, you feel like
you're going to die or something.
I have an extremely bad headache.
My shoulders and hands hurt.
I ache and feel weak.

I won't take metronidazole again. I have such pain in my both shoulders and aches and pains all over. Have been so tired, just want to sleep. The doctor said it isn't from the medicine, but Arthritis. I really think it is the medicine.