What is going on with my leg? I felt a small tare in my groin area on my left side, I have been icing for about 24 hours and now my knee is starting to hurt and bruise as well as my groin increasing in pain.

I . I wonder if you had an injury to a vein or a blood vessel. A hernia is also a possibility. The symptoms are concerning for a vascular problem or hernia and i would urge you to seek immediate medical attention. If you had leg swelling or pain, fever, vomiting, or shortness of breath then you would have to be seen as an emergency.