My knee makes a cracking sound when i come up from a squat, should i be concerned? it only causes pain somtimes

Osteoarthritis: Sound is called crepitus and is because of wear and tear causing osteoarthritis. Tylenol (acetaminophen) should be able to help with the pain if severe

Kneecap or inside : This could be the patella called chondromalacia patella where the patella rubs along the knee bone or could be internal structures of the knee such as ligaments and bone