Does anyone else feel NOTHING during sex?

My boyfriend isn't even bad in bed. Most of the time it feels great! My legs and hips even start to tingle and go numb from back shots...

But other times it just feels like its just going in and out, and I'm getting no pleasure at all...

Why is this? I've also never had an orgasm. He will start hitting a spot that feels really amazing... Then switch angles, or rhythm then its right back to feeling like nothing 😩 FML