Hi,
I think the problem could be due to the fracture of the ribs giving rise to the pain and difficulty in breathing. You need some local analgesic ointment where there’s pain and maybe some painkillers. The rib cage doesn’t change its position with this weight and thus you don’t need to worry about the same. You can get an ECG done and maybe an echo if you’re really worried about any damage to the heart. I sincerely hope that helps. Take care.
First, make sure you go to the emergency room, or doctor with this immediately. Contact your parents immediately and informed them what you have just written and contact the dorm supervisor and report it, a police report should be made, because he could have easily killed you (intent involved and this is criminal), you might have brusing to your longs, broken ribs, pressure to your heart....he could have killed you and this needs to be repored to your parents, police, school and he is to pay for all your doctor bills so keep receipt, which means possibly hiring an attorney to sue him for damanges, attempt murder and medical bills...you have a criminal case here. Good luck and get your self check for broken ribs.