Generally a Reiki session will relax and make you feel more positive. Each session will help raise your vibration level. During this process toxins stored in your body will be released into your blood stream to be filtered by the liver and kidneys which will remove them from your system. This process can cause headaches, stomach aches or feelings of weakness. Drinking more water, eating lighter meals and getting more rest can alleviate these symptoms. The healing process is cleansing the body so this is a good sign. The Reiki healing energy also works to resolve deeper problems. Helping you to let go of past issues and clearing any negativity you are hanging on to. You may also notice being more aware and your senses heightened. The healing will continue over the next week or so. Look for signs and synchronicities to help guide you in achieving your goals and general happiness.