26 yo female - 5 6 145lbs. I recently missed the bottom 2 stairs and fractured my ankle. I have been to the DR recently for an annual physical. All bloodwork/labs show normal including thyroid and hormones. The night I fell and fractured my ankle, about 5 min after the fall I got extremely hot, started sweating, and got light headed. I felt like I was going to pass out. I lost hearing except for a high pitch ringing noise. This lasted a minute or two. This was by far the most extreme version of this happening, but I have had this happen several time before. What could be the cause of my cold sweats, light headedness, and muffled hearing???