I'm anxious about getting stuck in a dream and getting away from reality, i know how absurd this is and how stupid to hear this from your perspective but i keep thinking about being stuck in a dream and away from the reality, and it terrifies me. Though i know this is impossible to happen or there are slight chances of happening but i still can't avoid thinking about it.

Sometimes, I just keep thinking "what if i'm just dreaming and none of these were real? What if i'm in a coma and away from reality?". 

Yesterday, i read a reddit comment from a person guessing that someone might have probably experienced that they're in a coma and just lucid dreaming. Sounds terrifying to me to just lucid dreaming while you're in coma. 

I know this post may seem stupid, but i need your advice, i have this ridiculous anxiety thinking about things that aren't real.