Doctor , whenever i go out with my gf ,

Patient: Doctor , whenever i go out with my gf , we start making out and then when things are about to go further i get sexually excited and vomit , i even tried taking pills for the stomach but nthg helps , it happened to me 3 times in a row and this is affecting my relationship , after we go home i kinda calm down and everything is ok , please help .

Symptoms: Vomiting and nausea

Doctor: