What is that makes you lie to people about how you feel/how things are for you? Are you conscious when you are hiding your feelings from others? Are you worried what others may think about you or react to you? Its really important to NOT contain your feelings as someone advised me to do once.. Its unhealthy self destructive to keep things caged inside.. People don't really know what's going on for you from the outside. They can only try to listen and understand, show compassion, help and support if you open up and let them in.