So worried about husbands work trip

My husband travels a lot for work. He’s going away in 2 weeks and I’m really nervous. I think I am dying all the time, and so worried I will die and he won’t be there to take care of the kids. He’s going to be away for 5 days. I’m worried I will die the first day he’s gone and no one will know and my poor kids will be left alone. They are only two and three and completely helpless. I hate feeling this way, I remember I used to love when he would go away for work I would enjoy the alone time but that was before I was worried about dying all the time.

When my husband is away we don’t really talk that much bc he’s busy. I’m worried we’ll talk in the morning, then I’ll die a little while after, then he might call me, i obviously won’t pick up and he will just assume I’m asleep.

I’m going to the doctor on Monday to have blood work done just to make sure there’s nothing going on, but I know I could just easily have a heart attack or stroke.

Does anyone else feel this way? Is there anything I can do to feel ok?