Symptoms may include:

Light or regularly broken sleep
Sleep starts (hypnic jerks)
Obstructive sleep apnea
Restless leg syndrome (RLS)
InsomniaNeurosensoryThese neurosensory symptoms are similar to pain in that the stimuli may be normal, but your brain’s response to them isn’t. While the cause is not well understood, the symptoms are believed to be largely related to the hyperactivity of chemical messengers known as neurotransmitters and the overstimulation of certain nerve pathways.Among the symptoms:

Headaches
Chronic migraines
Dizziness and vertigo
Fainting (syncope)
Sensitivity to temperature, humidity, and an atmospheric pressure
Sensitivity to light (photophobia)
Sensitivity to noise (hyperacusis)
Sensitivity to smells (hyperosmia)Digestive and Urinary

Digestive problems are common in people with fibromyalgia, with as many as 50 percent diagnosed with symptoms of irritable bowel syndrome (IBS). Like fibromyalgia, IBS is believed caused by an abnormal central nervous system response. People with fibromyalgia will also frequently have interstitial cystitis (IC), a condition that causes chronic pain in the bladder.