Given it got worse when you drove theres the possibility its coming on from your back... Just so you are aware that if it doesn't get better - musculoskeletal pains from contact sport - sprains/strains/bruises - tend to heal and get better from injury date. So if it isn't healing I would visit a physio to get it properly assessed and ensure that it is not a reffered pain.
Initial injury prevention is RICE (rest ice compression elevation) and encouraging early movement. So stay mobile.
Your pains are elusive and not blatantly obvious to me the mechanical cause - would need to see you to assess physically the area. Sorry about that but I think you need to go see a physio for a diagnosis so you can work from there.
Good luck