Get it checked out
Feeling sick with lump in groin
is concerning for HIV
or bacterial infection with klebsiella granulomatis is possible, often starts as small, painless nodules appearing after 10–40 days following contact with the bacteria
Later the nodules burst, creating open, fleshy, oozing, and infection continues to destroy the tissue until treated. Not to scare u, but should consult doc for eval. Good luck.