I am sorry to hear about your medical problems. Well, post surgery for all lower limb fractures, you need to wait for around 6 weeks before you can really put weight on that limb. Meanwhile physiotherapy is started and after 6 weeks, more rigorous physiotherapy is commenced. Once the muscles become strong and you can put weight on your limb without pain, you will be able to walk around. You can also return to walking if everything goes well. Also, since you had stress fracture, please get your serum calcium, vitamin D, thyroid and parathyroid hormone levels checked. Also, wear good walking shoes once you resume walking. Please discuss your rehabilitation in detail with your doctor. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.