Wife had an unwell feeling. Went to the doc and doc says UTI and low blood sugar but she is not diabetic. What could it be? On meds for UTI now.

Low sugar/UTI. Your wife could have felt unwell from her uti. A low blood sugar reading is not indicative of diabetes. It can cause a person to feel weak, dizzy, foggy headed, heart racing, clammy, sweating, and even pass out. It can occur at times if you havent had enough calories that day. Also can occur if you eat a meal high in simple sugars.