Hi The veins on my hands (I think its on the veins)  hurt like bruises when I push them, clench my fist or keep my hand in a downwards position. But there is no sign of bruising like a lump or anything. I think its occurring from the cold because it usually hurts a lot in the cold. Extra detail : I am a Freerunner and I do a lot of bar work like pull ups and things.
Hi. The pain in your hand could be due to muscle strain . Since you lift weight your forearm muscles workout always ...if your wrist position is not properly held there could be some loading on the forearm.leading to stiffness...the issue is not major enough to cause pain and problem.so you might not recognize it until you press on it... I suggest you to kindly. Do a lot of icing... Do lot if stretching for your firearm muscles...you should be feeling better with this.... Hope this is useful for you...in case you need any further clarification kindly revert....