Welcome JoeyM. I can answer your mycoplasma question. DS takes an antibiotic called minocycline for it from what I remember. It is "walking pneumonia" and definitely can cause breathing problems with Lyme patients.
I'm sure other members will chime in too and give you some additional info.
Hopefully your doctor is planning to treat you for these - if not, you will need to find an LLMD, which is a good idea anyway given your results. There is a lot of information at the top of the Lyme forum under "New to Lyme Disease".
Parent of 14yo DS with +Lyme test in Nov 2015, co-infections: mycoplasma (strongly +), babesia, mainly with antibiotics/anti-malerials. Supplementing with Vit D, Vit C, Vit B-12, multvitamin, milk thistle, dandelion, nettles, Burbur/Pinella, L acetyl carnitine. Magnesium oil, charcoal led to shorter herxes.
Website I started: ParentsofLymeKids.com