Be Smart with your Fitness!
Pain means stop. Pain has a very different feeling than muscle fatigue or muscle burn. Muscle fatigue is acceptable, joint pain is not. Don’t work into pain.
Dizziness should not be a part of your workout. Dizziness can be a signal that your body is not meeting its oxygen demands and intensity is too high. Decrease intensity.
Use muscles, not momentum. Swinging weights around uses momentum, not muscles. Momentum is where injuries happen. Ideally, you should be able to control the entire range of motion to overload the muscles adequately. Control the exercise for best results.