You may not feel better, but I think you are trying to make decisions with limited amounts of information.
FIRST. You need to see a hemo/infectious disease specialist AT ONCE. I'm going to second the opinion of David Carpenter PA-C, you need to discuss this with a qualified health practitioner!
I went through a situation not unlike this one many years ago. I was in school at the time and I (in confirmation that fate HAS a sense of humor) got a letter from where I had donated blood a few weeks earlier - that informed me of some puzzling Hep B results. (I HAD been sick earlier in the summer, but did not connect the dots...)
I panicked. Oh, the letter arrived on the Saturday of Labor Day weekend! (No doc's readily available to me! - and my PMD had a death in the family on Monday and was out that next week too!) Anyway, I settled on the top doc at the major tertiary care center in my state. I NEEDED ANSWERS! I WAS TERRIFIED! (Not just of being sick, but being kicked out of school OR making a patient sick!)
Thankfully, I was seen quickly and after extensive testing - I was NOT contagious. At first, it appeared that I WAS. I was followed for a time and then released from their care. Whew!
So, just get to a doc that can get you the answers you deserve. You cannot deal with anything - until you know what you are dealing with! Don't discuss this with anyone UNTIL you get these answers. (But, I think delaying a start in nursing is essential if you are in a direct patient care role - until you get meaningful results!)
Best of Luck.
I hope that everything works out for you.