Yes, Lyme disease is hard to catch, is on the rise, and is hard, if not impossible to get rid of. I met a woman who had had it and she said she was almost totally incapacitated for a whole year.
I wouldn't be surprised at all if you don't even have IBS, but the bowel problems are just a side affect of the Lyme disease. Probiotics help when you're on (and for three weeks afterwards) antibiotics, but a lot of other IBS helpful hints may not work for you if indeed your bowel problems are caused by the Lyme disease. BUT, on the other hand, they may improve once the other Lyme symptoms start to improve.