Flight in four hours. Panic. Might cancel.

I've been struggling with flight anxiety, and now I just woke up at 2 AM in a complete panic before my flight at 6 AM. I have lots of illogical reasons that I'm terrified, but now the weather says severe weather is expected this morning. Strong winds guaranteed, chance of tornadoes.

I am fighting to not wake up my husband and tell him I just can't do it. If this was a personal trip, I think I would.. but it's for work. How would I explain that?? I'd have to fake and tell work we had some family emergency or health issue..

I feel like a failure. If anyone can provide some help I'd appreciate it :(