Whch stackexchange website would i create a post about my computer problem?

Here is my question:

My laptop randomly shuts down, only if I move it. sometimes it shuts down, sometimes it doesn’t. I keep my laptop on for 12+ hrs a day and it never shuts down, given I don’t move it. when I move it, sometimes it will shut down, sometimes it won’t. I don’t hear anything rattling when I shake my PC. Any guesses on why?

If this is the place to put the question I will leave it here. If not, please let me know where I can put my question. I have not found out any potential solutions or guesses yet.

I’ve had this computer for 4 years without any problem like this before.