So, you are negative for lymes disease. I understand this from your post. Low B12 can cause a lot of issues. Are you following up with your doctor to discuss this? That's easy enough to supplement. https://www.webmd.com/diet/vitamin-b12-deficiency-symptoms-causes#1 This may help you. Eating eggs, fish and poultry may help you but supplementation may be important too. I am considering a nutritionist evaluation myself to nail down how I should be eating. This article talks about harm low B12 can do. https://www.health.harvard.edu/blog/vitamin-b12-deficiency-can-be-sneaky-harmful-201301105780 This really could be impacting what is going on with you! I would talk to your doctor about the negative testing but the reactive bands. Please let me know their response!