Chris, when I was at about 10-12 weeks post-op I was walking on my treadmill and decided to increase the incline to 3 and walk slower. I had no problems while on the treadmill, but the next day I started to have some pain in the new kidney area. It would be a sharp pain when I moved around or laughed, and sometimes just out of the blue. I didn't associated it to the walking at an incline right away, but I started taking my BP and temp again and they were always normal. I called my clinic and the first question they had was "Do you have a temp?". Apparently, that's a big indicator. When I thought about the walking we all agreed that I had probably strained something (muscle) due to the incline. I stayed horizontal for the next day and just relaxed and the following day the pain was gone.
My book lists Signs and Symptoms of Rejection as:
Fever over 101 F
Flu-like symptoms: chills, aches, tiredness, headache, dizziness, nausea, vomiting
Pain or tenderness around the new transplant
Fluid retention or sudden weight gain of 4 to 5 lbs over a day
Pain or burning when you pass your urine
Bloody, dark colored, or foul smelling urine
Making less urine than usual
Sudden rise in blood pressure
NOTE: Signs and Symptoms of infection and rejection are almost the same.
You may not feel any signs and symptoms of rejection.I hope this helps. Good Luck!