I had a recall 6 years ago and, like you, I was well and truly wound up!
I had a biopsy which came back clear but 2 days later I was phoned up and asked to come in for another one.
Basically, the doctor hadn't managed to take the sample from the required area so it had to be done again. Had the procedure done and this time I could see the results on a screen by my head. Doctor thought it was a cyst but sent the sample off for testing. Several days later it was confirmed as a cyst.
Husband had put a bottle of champagne in the fridge in order to celebrate or drown our sorrows, depending on the result. Maybe you could do the same?
Your recall will probably be nothing to worry about, but if it isn't, then take heart in the fact that the system has picked up any potential problems nice and early.
Best wishes! X