I've recently developed a swollen painless bump in the area between my penis and thigh, and when I feel it it has this small layer of skin which I can feel something under. Recently, I've been feeling fatigued at night and my eyes feel quite tired under the sun (this only happened when I was on atropine and I haven't been on them for months). Do I have an STD (my last sexual contact was 5 months ago)? Also as a side note I've had pimples around my groin area so is this just another one?