Congratulations for becoming a cancer survivor.
Regarding your bowel symptoms ,it is very difficult to relate them to your cancer or the treatment. They are non specific and can be due to so many different non-ancerous causes.
Being more tired is common after undergoing radiotherapy and chemotherapy
. It usually subside on its own and there is no specific treatment.
In the foot where you got radiation treatment
,the lymphatic drainage
is altered.So you are likely to get lymphatic swelling called lymphedema
.That leg is also more prone to get infection due to it.Probably you had some infection in the leg which got better with antibiotic.