How a phone call messed up my day!

I know I shouldn't let such things upset me, but I received a phone call from someone who works for the bank I use. My husband and I are hoping to buy a house and are trying to sort out a mortgage. (Yes, yes, I know it's not a good time to buy but sometimes you still need to do these things even when the time isn't right!) We thought that everything was going ahead just fine, when I received this call at 8:45 in the morning from someone I could barely understand (for various reasons) saying that I needed to come up with 30,000 pounds more to put down on the house. I am still waiting to hear from my mortgage adviser about what is going on. It's just put me on edge. Yesterday, I washed the floors by hand to try and get over this feeling. Then I wrote 2000 words on my next chapter. I thought I was over it until I got up this morning and found myself waiting for the phone call (which didn't come yesterday). I'm also going to the dentist at 2:30 so that might be part of the problem. Alas!