What to do?

How do you stop worrying if a person who talks to you every single day suddenly stops contacting you and that person is the one who you care about most? What could the reason be for the sudden disappearance? It's been three full days now and she's never misses a day before.

Well maybe they are having a hard time in there life and they dont really want to talk to anyone, you should wait a while longer, and if theres still no contact then you should try to figure out the problem

Thanx for the help. I seriously didn't know what to do,

Wait for a while. She might be going through a tough time and need some time away from everyone.