Is anyone else's anxiety/health anxiety episodic? Like, I feel fine 80% of the time and can live a normalish life without any issues. I go to work, exercise, see friends, and sleep fine. That being said, I live with my partner of 5 years, and he has a job that requires travel from time to time. His current trip is 8 days, and he just left today.

I already feel my anxiety rising and I'm uncomfortable being left alone in the house at night, which causes me to lose sleep, which causes my anxiety to get significantly worse. It's like I need someone else there to help calm me down and entertain me, so I am not left with my thoughts. I feel like if there's anything wrong with my health or if my anxiety flairs up, I'll be fine if as long as I have someone there with me. It's the comfort of knowing if anything bad happens, at least I won't have to deal with it alone. 

The anxiety coupled with the sleep loss is just a terrible combination. But I know it's all psychological and is usually triggered by a situation where I'm going to be by myself. When it gets really bad I usually ask someone to come stay with me so I can take a sleeping pill/ativan at night just to catch up on sleep.
Does anyone have any tips on dealing with episodic anxiety/health anxiety?