Why do parts on my finger randomly swell up, become numb and red to the point parts of it turn white from pressure? this has happened 4 times for no reason. sometimes theres a tiny cut (paper cut like) but no other obvious reason?

The closest condition to these episodes that I can think of is Raynauds Phenomenon which is caused by spasm in the smaller arteries of the fingers. It is a reaction to cold exposure or stress. Usually there is no obvious cause of this symptom& it's usually harmless. Less frequently it's caused.by autoimmune disease,carpal tunnel syndrome or certain medications. Rheumatologists usually deal with th