Why do things feel a little heavier on my right arm when i lift something and it tingles a little?

Is it hand or Arm?: Most likely it is nothing. If you use your arm and hand repeatedly for some task, there is a chance that you may have developed some kind of nerve entrapment: like Carpal Tunnel syndrome. but you are young for that. Try to stretch and relax and give some rest to your right arm. Are you a body builder or heavy weight lifter? that can also affect the Arm and Nerve