I had a horrible nights sleep and ended up waking up at 3am for a herbal tea and some toast! Woke up at 6am to tend to my DD. Went out for coffee with a friend, I have really cut back on caffeine but without thinking ordered two large cappuccinos. I'm now feeling anxious, jittery and out of sorts (doesn't help I just ate a very sugary cupcake) is this the caffeine mixed with tiredness and anything I can do to stop the jitters?