Hi... Sorry to hear about your fall.. The fall as you narrated a bad one...then there could be associated mscle spasm of the muscles around the elbow.. which is why you experience difficulty in bending and stretching arm... If I were you I would have got a x- ray done... Don t worry... I would suggest you to Do frequent icing..to elbow... you can wrap the whole elbow with ice....icing on biceps.... You can knead on the biceps... strictly not on the site of pain... You can have Anti inflammatory tabs if you have one prescribed to your earlier by your GP... keep it compressed with a compression sleeve or bandage... Hope this is useful for you... Kindly revert back in case you need any further clarification....