Good luck Howard
I want to wish you good luck now and for that test! Remember to stay calm for the test and not to catch something a day before you have to get the test. I have had that happen more times than I care to remember. Maybe, it is mental. I would get too stressed thinking of the test (which is only a test by the way and not necessarily indicative of how a person normally feels) and invariably catch some crud before I went. Tell the doctor the next time you take the test you would prefer something simpler like multiple choice. Seriously, Howard, I do hope you get over the bug you've had soon. You will bounce back better than ever.