My scrotum skin feels like a very wrinkled thick plastic bag to the touch, dry and a bit red but no itching, like very excessive skin between penis and testicules made them look like theyre hanging lower than usual, everything was normal until today?

Normal: What you described is the normal state for scrotal skin. Unless you have observed a major change in the skin, let it be. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!