I was seen at the hospital because something bad happens to me and they tested me and i didn't have anything but they went ahead and gave me a shot a 10 days doxycycline and i'm still taken them but now i'm concerned because every now and again i'm a litt

STD prevention?: You don't say what you mean by "something bad". An antibiotic shot (ceftriaxone?) and doxycycline are often given after sexual assualt to ward off STDs. They will effectively prevent gonorrhea, chlamydia, and syphilis. You may need other tests as well, such as an HIV test. But I'm only guessing; whether I'm wrong or right, you need to follow up with your doctor. Best wishes to you.