Can exaggerating real life threats considered to be paranoia? 

Example : can’t stop thinking about a threat I received from someone even though months and months passed and deep down I know it’s not a serious issue but I can’t seem to stop thinking about it for some reason and I keep thinking of the worst case scenarios ..
Part of my brain tells me it’s an absolute bullshit and the other part tells me My life is gonna end over this situation.
Some days I only have this paranoid thoughts
And the other days I’ll be laughing on how stupid these ideas are .. I’m so tiered of this thoughts cycle and I feel like I’m losing my mind ..