I noticed a small lump on my left thigh which disappeared after a while, leaving a black mark. Similar lumps have been appearing in my groin area, especially on the scrotum, there's one on the penis head, and now on my buttocks. once touched they tend to get very itchy significantly during the night, if ignored they aren't so itchy. But at the same time I feel itchy all over my body especially lower back, inner thigh region, hands and now armpits.
No sexual relations so far.