Woke up to pinky and ring finger tingling and numb for past hour. i do have fibermyalgia. when should you be concerned about numbness in fingers?

See details: Numbness in those two fingers suggest an ulnar nerve irritation known as a cubital tunnel syndrome. If it persists see your doctor. It is not related to fibromyalgia.

Little and ring : Tingling may mean that the ulnar nerve is irritated or the lower cervical nerve roots in the neck are affected. These are the more common reasons for the symptoms of tingling in the little and ring fingers.

Now: Numbness for hour worrisome. Pinky tingle of ulnar parasthesia should immed remit with arm position change. I oft found tilted shoulder girdle & deconditioned superior trapezius muscle (thin leading edge) on shoulder downslope side. Radial pulse disappearance as arm abducts & positive ultrasound oft confirm thoracic outlet syndrome (transient subclavian artery impinge). Vascular surgeons know.