Is this a sign of arthritis?

40 yr old— I’ve been lifting with dumbbells for the majority the year so I’m debating whether that is somehow related—and yes I’ll see a doctor if it keeps but just looking for anectdotals right now—

the best way I can explain what I’m feeling is that my knuckles are “bunching up on them selves” when I am putting weight on them sideways. Awful phrasing, so an example would be, picking up a plate and putting it in the cabinet, I feel a strain in the knuckles like they’re too close together. hopefully I’m not too late to start glucosamine chondroitin (if that’s the move).