You have not mentioned about your blood
sugar levels. There may be Diabetis. Get tested for the same alongwith
thyroid problem.
After pelvic fracture sitting on floor will be a problem, which could be overcome over a period of months or years.
Regarding your stamina , is your weight normal for your hight.
Take plenty of leaffy vegetables and fresh fruits on regular basis in your daily food. Do some light exercises like walking for atleast 30 minutes daily. Take capsule Dexorange once daily. Review after 3 months.