I ate dinner. 2hrs later checked my blood glucose it was 116 so in range. Then about an hour after that I took a really hot shower to help my back , was feeling kinda shaky and weak so got out pricked my finger again and it was 68?!?! Was freaking out thought that it was way too low so I ate some fruit snacks and crackers bout 30mins later checked again and was back up at 152!? Is this normal? Did my hot shower cause my levels to drop too quickly ?!?!