Crystal Light?

I used to drink Crystal Light, but then I started developing a lot of urinary tract infections. I am not sure if it was the Crystal Light or not, but I stopped drinking it anyway, just in case. Does anyone drink Crystal Light and does it make your blood sugar levels go up? My blood sugar level is close to 120 every morning and it use to be in the 80's. I am wondering if the Crystal LIght is causing that because I just starting drinking that about 2 weeks ago and I wake up with my insides shaking and having to go to the bathroom more and have an incredible thirst most of the time.