https://www.mind.org.uk/information-support/types-of-mental-health-problems/anxiety-and-panic-attacks/symptoms/

These can include:

  • a churning feeling in your stomach
  • feeling light-headed or dizzy
  • pins and needles
  • feeling restless or unable to sit still
  • headaches, backache or other aches and pains
  • faster breathing
  • a fast, thumping or irregular heartbeat
  • sweating or hot flushes
  • sleep problems
  • grinding your teeth, especially at night
  • nausea (feeling sick)
  • needing the toilet more or less often
  • changes in your sex drive
  • having panic attacks.