I have this feeling that could go either way one day?

So i know we should keep things bottled up but I do and I can contain how I feel and not get pissed off and just put on a front but when I lie down ready to go sleep I get this feeling one day im just gonna scream or going to a panic mode.

When I lie down ready to go sleep I crouch into a corner either in a couch or in bed and I feel I just want the world to go away. It feels like a little anxiety attack each time.

What do I do?
I have this feeling that could go either way one day?
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