After a kickboxing class i own be experiencing affliction within gone lower tummy. It even hurts when i do pushups.
Today was the 2nd time I attended the class. It started hurting right after the 1st class.
Answer: Talk to your Kickboxing Teacher, he might know why its going on, Personally I think you've pulled a muscle and basically need some rest for a couple of days.
Muscle pains can ending a while and can be quite bloody...
If the Pain persists, see a doctor. Muscle Pains can be cured next to special cream!
Good Luck!