I've been craving carbs and sugar too....for quite a few months now. Not my usual way of eating!!
I looked it up in relation to Lyme and read (on one of the big LLMD's sites--wish I could remember who !!!) that....
.....since Lyme bacteria like cold bodies our own bodies fight this by wanting to warm up, thus we eat carbs/sugar in order to heat ourselves up by processing these high caloric foods.