Any update on your situation. Please let me know because it is very similar to mine and maybe we could figure something out from each other.
Hey man, I am going through something similar to you right now. My groin has been red and slightly swollen on both sides where my testicles meet my thighs (the folds), although I do have slight testicle ache and sensitivity. I dont have the sweat and slime though, but have frequent urination problems and some other slight vague symptoms. My doctors at the moment suspect either a kidney or prostate problem, or possible epidydimitis. Look into those and see if any of those relate to you.