Having Langerhans Cell Histiocytosis. On Steroid Pills. Strong Ammonia Smelling Odor In Urine. Reason?

Question: I have recently been diagnosed with Langerhans Cell Histiocytosis. About 3 weeks ago I was in the hospital with acute bronchonitis and had 2 iv antibiotics, steriod iv every 6 hours and breathing treatments every 4 hours. Since getting out of the hospital I had 3 days of steriod pills and an inhaler. I have been off all of it for over 2 weeks now but I have noticed a strong, foul, ammonia-smelling odor in my urine every time I go (and I drink plenty of water daily). Also, there is a metallic smell with the ammonia and also a metallic taste in my mouth and smell to my breath. I have not had any pain in urination, but have experienced some pain in my legs and swelling in my ankles. I have had a doppler done to rule out blood clots in my legs. The only medication I currently take is famotidine for heartburn and maxzide when my ankles swell. What could be causing this odor, it is very embarassing and annoying.