You should consider seeing a doctor...I don't think anyone can make a diagnosis, or rule out herpes or many other possibilities, based on the information that you just provided above.
Hello,
The red non itchy bumps can be due to folliculitis which have appeared after shaving the area. The itchy bumps sound like irritant contact dermatitis. The groin pain has nothing to do with your skin condition and sound like due to excessive exercise. Please keep the area clean and apply some topical antiseptics. Also wear loose-fitting cotton clothing and use an antibacterial soap or mild soap like dove. Avoid any kind of cosmetics. Topical antibiotics such as mupirocin or neomycin containing ointment are also useful. In case the symptoms persist then oral antibiotics may be needed. Please consult a dermatologist in that case.
I hope it helps. Take care and please do keep me posted in case you have any additional doubts. Kind regards.