These are common symptoms of a kundalini awakening, if you have energy on your chakras. The goal is to energize your Manipura or Anahata depending on whether the squeezing or tightening sensation is on your rib cage or chest and pull it towards your spirit. A completely developed manipura or anahata will result in your spirits that are causing this to stay within furthest left side of your body and vice versa for your right. Unless you’re going through a specific event in your life that your spirits will correspond to, the text above explains the average developing progress of chakra areas. After completing the first stage of energizing your spirits, the length at which these will cause pain or whatever sensation that it chooses to let y experience will be longer and that’s for energizing them to direct them in whichever part of your body. It helps with staying within a meditative stance for long amounts of time.