I want to know whether one can develop an STD or STI with oral sex or dry sex, (that is, touching the penis over vagina without clothes and without condom). I have never had actual sex. But had oral and dry without clothes and protection. It is done without knowing the history of partners. Should I get a STD or STI checkup done? After last time, I have developed sore throat, cold and weakness. But I am not sure of the reason. I haven't observed any odd vaginal fluid as of now. Could be because of season change or I am also about to have my periods. Also, I have done this with multiple people. Thank you.