Well, I am older than you & know how much more difficult it is to bounce back from things. In all honesty, you may find the jarring from walking on the concrete pretty difficult. I have seen a few say after this surgery, their first week back they thought their head was ready to come off of their shoulders. However, in all fairness, they went back full time & that is just pushing it too much.
Try not to worry about the return to work so much right now, just work on getting yourself to feeling better. Take care.
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