In the morning, both ip thumb joints are locked up but release after popping. it is not painful but its new. as a 25 yr old artist, is this a concern?

Popping thumbs: You might have trigger finger (trigger thumbs). It is characterized by catching, snapping or locking of the involved finger flexor tendon, associated with dysfunction and pain. A disparity in size between the flexor tendon and the surrounding retinacular pulley system results in difficulty flexing or extending the thumb. See a hand specialist to confirm the diagnosis and to provide appropriate tx.