I'm 13 weeks tomorrow, so I thought I might as well post this here. I was feeling jittery and unwell today like I had too much caffeine(i didn't). I thought my blood pressure might be low or something so I checked it at Walmart today on one of those blood pressure machines they have. It was normal but I noticed my resting heart rate is 110bpm. I've been having palpitations some days too. I wonder if it's normal. did anyone else have this near the 2nd trimester?