Your fingers and feet are dense with nerves, human fingers can feel a scratch smaller an our eyes can see with these nerve-dense fingers. It also means that pain hurts bad in those areas. read more
Another possibility would be arthritis of the finger joints. This is a common problem in older and middle aged adults. Osteoarthritis, which is the 'wear and tear' type of arthritis, often affects the last knuckle on the fingers, which could be interpreted as pain under the finger nails. read more
Fungus. However, this would be obvious as there would be thickness. If here is thickness at all, I would rule out neuropathy as the cause. read more
For several years now, I have noticed this same symptom. The best I can describe it is a pain under the finger nails. It appears to start for no reason, and lasts for varying amounts of time. It seems to affect all of the finger nails. At times it is an ache, and at times it is a stabbing pain. read more