Panic attack during sex? TMI!!!!

Em
So my husband and I like to blindfold each other sometimes when we have sex. Adds that special flare. Well tonight was different. He and I were really going at it shaking the bed and everything and out of nowhere I got hit with a massive panic attack and start crying and gasping and fighting to sit up. At first my husband doesn't realize I'm crying because of the blind fold so he keeps going. I finally im able to almost scream "stop let me up". He stops immediately and sits up and basically rips the blindfold off and I'm doing some hardcore sobbing and gasping and it freaks him out. I have no idea why this happened. I've never ever had a panic attack during sex. I thought the blindfold may have triggered it but it never had before. I feel so bad about the whole thing and that he wasn't able to finish because I had a mental breakdown. Has this happen to you guys?