Anxiety attacks in third trimester?!

Anyone else start having horrible anxiety attacks in the third trimester? Seriously, I've been having crying episodes, I can't stop my brain from obsessing on stuff that doesn't even matter right now (like whether or not I'm going back to work in December when my baby will be 8weeks, and whether or not we are going to buy a safer car in January). I am just panicked all the time, obsessing over the stupidest stuff, crying all the time. I was never like this before. When will it end?!