Could An STD Be Causing Constant Stomach Gurgling, When Probiotics Only Suppress The Symptoms?

I had protected sex. Within 27 hours, I had gurgling in my stomach and night sweats for 2 days. Everything went back to normal. The next time I had sex with the same person, the same exact thing happened. Now, after being with this girl for a month, I have constant gurgling noises in my stomach which seem to be suppressed when I take a probiotic several times a day. What STD causes gurgling in the lower stomach or intestine and what can I use to kill this virus as Probiotics only seem to suppress the symptoms.