Weekend fun

I say fun but that isn't the best way to describe it. Itchy would be more appropriate. I started with a small patch of hives on my elbow Saturday morning. This morning I woke up and they are everywhere!!! The only thing in my diet that changed is I had a diet coke at the movies Friday and coffee yesterday. I haven't had caffeine since I found out I was pregnant. I wonder if my body is rejecting it. I have been taking benedryl but it is not helping much. I think it could also be hormones. Either way, I hope they go away soon!