What is causing me to cry all the time?

Anxiety and possibly depression may be a cause of this because of all of the stress you may be put under.

Sometimes we don't know the reasons for our mood swings. They can have biological causes like hormones or worries that we try to not let out. Talking about it might help.

the sense of loneliness may sometimes cause you to be upset and cry. crying is a mechanism to let out frustration. so its okay to cry!

Are you under any stress with work or home life, relationship issues?... there are days when we can be overwhelmed with emotions and just burst into tears and never actually understand or know why we just did that.. Sometimes we just feel like there is no reason and just put it down to having a bad day. Maybe try speaking to a doctor or a counselor on a 1 to 1 session can be beneficial because we don't always know why things are happening on the surface sometimes there are deeper routed meanings or reasons for why we feel the way we do..