person A: A few years ago_comma_ when I was riding my bike home from work_comma_ I was struck by a van on my right side. My right lung fully collapsed and my left partially collapsed. It was a scary situation.
person B: I bet it was_comma_ I'm glad you are doing better now.  Did they find the person driving the van? Did they even stop?
person A: He did_comma_ it really wasn't anyone's fault in this situation. It was late at night_comma_ and snowing quite hard_comma_ so he just didn't see me. Luckily_comma_ I had insurance and I was out of the hospital in a few days.
person B: Wow_comma_ thats awesome you were only in for a few days.  I guess I haven't had an accident that bad before but I would have thought it would have been a longer time period.  
person A: Yeah_comma_ I was pretty lucky. I had a chest tube put in_comma_ and once my lungs were inflating normally again_comma_ I didn't really need any more treatment.
person B: Thats awesome_comma_ I am really glad youre OK now :)