All patients will be treated with Gralise. Patients who are on pregabalin or gabapentin (lyrica or neurontin) will need to wash off the medication before starting Gralise.

Patients who are ready to take Gralise will start with starter pack, and will gradually titrate the dose up to 1800mg per day. After that, patient will take 1800mg per day out of the bottle.

Patient will be seen in clinic at 4weeks intervals for first 4 visits, and then there will be end of the study visit on week 15. On visit 4, week 12 of treatment, patients will be taught to taper off the study medication.

Patient who are on gralise will report efficacy by rating his or her pain rating on a digital pain scale (11 points) from 0 to 10 on each scheduled clinical visits, which will be compared to their pain level at baseline.

In addition, patients will also record the doses and any adverse effects that might arise during the trial in a diary provided by the study. All information will be recorded in a paper diary that will be followed by coordinator during each follow up visits.

Fibromyalgia pain experienced by study subjects will be captured using NPRS at baseline visit, at each follow visits that are scheduled to occur every 4 weeks over 12 weeks of treatment period, and at the end of treatment visit that will occur 3 weeks after treatment period (12 weeks treatment period + 3 weeks = 15 weeks). Any difference in NPRS scores between baseline and any subsequent visits will indicate the magnitude of pain relief as reflected in digital scale of 0-10 (0=no pain, 10=worst pain imaginable).

Medical Outcomes Study (MOS) sleep questionnaires to assess how Fibromyalgia impacts patients' sleep in various areas.

Specifically, Data reported below measured number of hours subjects spent per night sleeping. MOS sleep questionnaires were assessed at each follow up visits. (visits 1, 2, 3, 4, and 5).

Patient Global impression of Change (PGIC) is an outcome commonly used measure of the efficacy of treatments. PGIC is a 7 point scale that requires the subjects to assess how much the patient's illness has improved or worsened relative to a baseline state at the beginning of the intervention. and rated as: 1, very much improved; 2, much improved; 3, minimally improved; 4, no change; 5, minimally worse; 6, much worse; or 7, very much worse.

This is an open label trial to evaluate the efficacy of Gralise against fibromyalgia pain. If subject is taking gabapentinoids at the time of enrollment, subjects will be required to wash off the medication; otherwise they can start the starter pack for Gralise, and will eventually up titrated to treatment dose of 1800mg with evening meals per day.

Subjects will be followed every 4 weeks for total of 12 weeks. At the end of 12 weeks, subjects will be wash off the Gralise over 2 weeks, and will have a final end of treatment visit at week 15.

Subjects will be asked to rate their pain on numeric pain rating system (NPRS) as primary outcome measure. Subjects will be asked to assess Fibromyalgia Impact Questionnaire (FIQ), Medical Outcome Study (MOS) Sleep questionnaire, and Patient Global Impression of Change (PGIC) as secondary outcome measures.

At each follow up visits, occurrence of adverse events, and changes to concomitant medications were evaluated and recorded.

Fibromyalgia pain experienced by study subjects will be captured using NPRS at baseline visit, at each follow visits that are scheduled to occur every 4 weeks over 12 weeks of treatment period, and at the end of treatment visit that will occur 3 weeks after treatment period (12 weeks treatment period + 3 weeks = 15 weeks). Any difference in NPRS scores between baseline and any subsequent visits will indicate the magnitude of pain relief as reflected in digital scale of 0-10 (0=no pain, 10=worst pain imaginable).

All subjects had diagnosis of fibromyalgia and met the inclusion and exclusion criteria.

An Open label trial with Gralise. All subjects on gabapentinoids will require wash before starting trial.

All Subjects will follow the instructions on the Gralise starter pack with eventual goal of 1800 mg/day.

Subjects will be have follow up visits every 4 weeks, and at the end of 12 weeks, subjects will begin to wash off of Gralise. Visit 5 will be end of the study/ treatment visit.

Subject will rate pain ratings as primary outcome measure, and fibromyalgia impact questionnaires, medical study's outcome sleep scores, and patients global impression of change (PGIC) as secondary outcome measures. Subjects are assessed at each follow up visits for adverse events, and concomitant medication changes if any.

Subject had a laparoscopic bariatric surgery few years ago, and as a consequence subject suffered a bowel adhesion and subsequent small bowel obstruction. Subject underwent lysis of adhesion, and recovered without sequelae.

bilateral upper extremity swelling.