Partial article from  https://en.wikipedia.org/wiki/Kundalini#cite_note-Maheshwaranada-12

Physical effects are believed to be a sign of Kundalini awakening by some,[11] but described as unwanted side effects pointing to a problem rather than progress by others.[12] The following are either common signs of an awakened Kundalini or symptoms of a problem associated with an awakening Kundalini (commonly referred to as Kundalini syndrome):

  • Involuntary jerks, tremors, shaking, itching, tingling, and crawling sensations, especially in the arms and legs
  • Energy rushes or feelings of electricity circulating the body
  • Intense heat (sweating) or cold, especially as energy is experienced passing through the chakras
  • Spontaneous pranayamaasanasmudras and bandhas
  • Visions or sounds at times associated with a particular chakra
  • Diminished or conversely extreme sexual desire sometimes leading to a state of constant or whole-body orgasm
  • Emotional upheavals or surfacing of unwanted and repressed feelings or thoughts with certain repressed emotions becoming dominant in the conscious mind for short or long periods of time.[13]
  • Headache, migraine, or pressure inside the skull
  • Increased blood pressure and irregular heartbeat
  • Emotional numbness
  • Antisocial tendencies
  • Mood swings with periods of depression or mania
  • Pains in different areas of the body, especially back and neck
  • Sensitivity to light, sound, and touch
  • Trance-like and altered states of consciousness
  • Disrupted sleep pattern (periods of insomnia or oversleeping)
  • Loss of appetite or overeating
  • Bliss, feelings of infinite love and universal connectivity, transcendent awareness