Hi last weekend I went to a lap dancing club and got a few lap dances. Passed out and next thing I remember is waking up in a taxi. Don't remember having sex but can't be 100% guaranteed. Didn't even think anything then yesterday got a swelling feeling in my groin on both sides where the leg meet the torso. But no obvious signs of swelling externally. I've had no other symptoms peeing is OK no discharge. Is there a chance of an std?