Any injury can worsen
fibromyalgia, so yes, a car crash can be a
real set back if you have
fibromyalgia. However, aches and pains can also be the direct result of an injury from car crash. So, depending on your symptoms this aspect should be investigated.
If your symptoms are due to worsening of fibromyalgia only, then the treatment is a mix and match of analgesics, anti depressants, anti seizure medications, physical therapy and counseling. Please discuss with your doctor. Take care!