先月には、初めて手術ってのも経験した。退院後は、原チャで5分の距離を通院もした。
I think that me not knowing what 5分の距離 means and assuming that it means "distance of 5 minutes with my moped", but I somehow perceive it that 距離 is the thing that is being 通院 and not the speaker
I tried finding sentences that have a direct object with 通院 but I can't find any.
Here is my understanding of the sentence
The distance of 5 minutes with my moped is (used to go to the) hospital for regular checkups