I felt good most of the day. I was taking Lantus 18units twice a day. Which my Doctor told me to not take the evening dose and stop completely. So today I started the Jardiance took with my metformin 500mg as instructed. This evening I have nausea, gassy, and heart burn like crazy has anyone experienced this ? I am new to this drug and have lots of allergies I worry because I have a heart arrhythmia and it has been kicking in a lot today as well. Any advice?