Since I started lifting several months ago, I have noticed that my pinkies' (both of them) movement has been affected. This is more noticeable right after waking up in the morning, and consists on the following: if I close my fist and slowly open it, instead of my pinky bones opening gradually like the other fingers, it feels like they get stuck/stay flexed at the beginning and only when my whole hand is almost opened they get unstuck/unflexed very sudden and harshly.
I'm 5'7/145 and follow a FBW routine that I do 3x or 4x per week. Exercises are as follows and all performed with DB: one arm row (4x8, 50lbs), bench press (4x8, 90lbs), incline bench press (4x8, 75lbs), chest flies (3x12, 65lbs), concentration curls (3x8, 55lbs), shrugs (3x10, 55lbs), shoulder press (4x8, 65lbs), power partials (3x10, 30lbs).
If I had to guess, I would say that this is caused by the fact that I only lift heavy dumbbells (only equipment I have available) and this has put too much pressure on my wrists. Am I right, and is this a common issue?