I don't really see what STD the combination of symptoms you describe could be. Tight stretch pants sound more likely. Also, it doesn't sound as though the kind of sexual activity you had would be likely to cause anything.
Yeast infections can come spontaneously too. You're probably well-advised to see your doctor about the discharge, because it may be something else other than yeast, but either way, treatment seems advisable. But I don't think you need to be concerned about STD.
Best.
Dr. Rockoff
2) I have a lump under my right arm. It is there about 2-3 years now. it is not hard. whenever my menstration comes around the lump will get bigger and heavier. can you please tell me what do i have to do? Is there any other way to get rid of it beside surgery? Is it very serious or is it cancerous or detremental to my health?
3) I suspect that i am pregnant? but i suspect that i have also picked up an infection. I believe that it is a yeast infection. It looks sort of cottonesh. what should i do?