Hello Mousey23 and welcome.  Well, I don't know how comforting it is but myself I would try to be grateful that they are going the extra mile and carrying out testing to "make assurance doubly sure" as the saying goes.    Try to look at it this way: if the tests come back negative you will have an even better assurance that you are okay and even if they do come back positive it is good to have it picked up as soon as possible then it can be dealt with quickly.  I am sorry that you are anxious but that is the same for everyone who is awaiting test results and I am sorry that I cannot offer any guarantees.  Best wishes. Annie