Thanks for sharing your concern.
Did you notice any swelling associated with pain.?
Is there any difficulty in opening and closing of your mouth?did you take pain killers?
you are not able to chew from your molars because the jaw would have got fractured after receiving the blow.
some times the impact of injury
is such that it fractures
and loosen only the tooth and jaw remains intact.
It could be a simple blow and just an inflammation of tissues too,causing temporary discomfort.
so i mean here it should be well examined clinically by clinical methods and then if required a x ray
should be taken.
For that you need to visit your dentist
and get thorougly examined.you can also take an x ray to know if the jaw is fractured.
many a times it is not very obvious that there is a fracture but it is best to get diagnosed and treated to prevent malunion
Meanwhile do not eat any hard foodstuff on that side,restrict yourself to semisolid diet till it is well diagnosed and treated.
Hope it helps.