Anxiety

I'm 20+ weeks pregnant and I have been experiencing anxiety when I'm not home. I'm fine if I'm outside but if a lot of people are around I get really anxious and just want to be home. I don't like feeling this way at all and haven't felt this way in years. I struggled with this when I was younger and living with my parents. Just now has it started coming back. And I have noticed it gets worse around my family. I don't want to shut them out but I feel that's the only way to help this.. Any advice for me?