Anxiety during pregnancy?

Lish
I had pretty bad anxiety and panic attacks before I got pregnant after having a miscarriage. It seemed to ease up about two months before I got pregnant and I haven't had any real overt anxiety until now, at 21 weeks (will be 22 weeks on Saturday). I worry about EVERYTHING even tho I have no real reason to. My little girl kicks a lot, is healthy and growing normally, etc. My Grandpa, who I was very close with, died suddenly last week and it seems to be coinciding with this new hormonal imbalance/influx.  Has anyone else experienced this type of onset or return of anxiety once they got farther along?? I thought I would feel less anxiety bc I was getting closer to viability so this is very jarring! 
Thanks.