just now went running with housemate... trying to run faster than her, i slipped and fell oddly into drain and some sharp edges of the drain hit my lower right rib. sibei painful so she sent me to a&e. doctor see liao. she said go for xray to see got rib fracture or not. I hope not, but lower right rib sibei painful though no swelling. but I cough got pain....sian...