I think most people with Lyme have some issues with Candida. If you had positive bands and were under-treated, chances are you still have Lyme and it's probably contributing to at least some of your issues.
There is no reason you can't treat them both. I personally think it's better to go after Lyme aggressively first with nutritional support to keep Candida at bay plus olive leaf, nystatin, diflucan etc. Then after Lyme and co are under control, continue to treat Candida for a while longer.