hi there, as you say the pain is bearable without any bruise
and you are able to walk, I think it is just some muscle injury
and your bone/joint are fine. You try taking a painkiller and some physiotherapy
for a few days. If you still do not see any improvement then an x-ray can be taken torule out any internal damage. If your pain worsens then also you must visit your doctor immediatedly. Till that time stay put and take care.