Hi jennie48. The sugar you are eating may be causing yeast. This could be one reason for the yucky taste. Does your tongue have a white coating on it? The Lyme bacteria love sugar, so this may be why you feel worse from eating sweets.
I think Lyme can cause low blood sugar in some people. I have had this in the past. I believe what helps the most is to eat a healthy balanced diet and several small meals daily. Avoid white floor products, processed carbs, and sugar. This can make a huge difference in how you feel by keeping your blood sugar level instead of it spiking and crashing.
are you taking anything for yeast, nystantin or diflucan if not you should be if your on long term antibiotics.
you can do a quick test fill a glass full of water set on nightstand when you git up in the am spit in the glass then let it sit if you get these stringy looking things hanging down in the glass you need to go on yeast meds.